Detailed/More Info:
Copper Mountain Mill [aka Lois Mill; Sioux Falls Mill; Fluorine Mill]
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Info Database Last Updated 08.04.2024 (Entity News entries: 41)
Type/Category of Info:
General Mining News
Info Source From:
The Mining World. Volume: 29 [XXIX], Issue No. 19
Info Publication Date:
November 7, 1908
Info found on page:
722
Info Title:
Copper Mountain Cyanide Mill Ran Successfully Throughout October
Cripple Creek—The cyanide mill on Copper mountain, now operated by H. Russbach and associates ran successfully throughout October, treating about 75 tons of ore daily.
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Above Info was Last Updated on 04.01.2024 (09:55:19)
Above Info was First Seen 04.01.2024

Type/Category of Info:
General Mining News
Info Source From:
The Mining World. Volume: 29 [XXIX], Issue No. 16
Info Publication Date:
October 17, 1908
Info found on page:
616
Info Title:
Old Copper Mountain Mill Operating Again

Cripple Creek—Two shifts are employed at the old cyanide mill on Copper creekCopper Mountain, formerly operated by the Sioux Falls Mining & Milling Co., and approximately 75 tons of ore from the Finance* mine is handled daily.

* This name is Most Likely a name error/mistake done or it is possible a new company name; either way, it is an error in my view as there are no known mines with this name in the District! I presume this is really about the Fluorine mine as that is the property mostly linked to this mill.

Notes/Text been Edited:
Fixed location error and made note about mine name
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Above Info was Last Updated on 02.01.2024 (09:21:32)
Above Info was First Seen 02.01.2024

Type/Category of Info:
General Mining News
Info Source From:
The Mining World. Volume: 29 [XXIX], Issue No. 15
Info Publication Date:
October 10, 1908
Info found on page:
575
Info Title:
Wishbone & Copper Mountain Mills Should Resume This Month
Cripple Creek—The Wishbone and Copper Mountain mills will probably resume this month.
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Above Info was Last Updated on 01.01.2024 (17:14:13)
Above Info was First Seen 01.01.2024

Type/Category of Info:
General Mining News
Info Source From:
The Mining World. Volume: 26 [XXVI], Issue No. 2
Info Publication Date:
January 12, 1907
Info found on page:
48
Info Title:
Rhyolite Beacon Co. Copper Mtn. Cyanide Mill Working Satisfactory

Denver.—The Beacon-Rhyolite stamp millRhyolite Beacon Co. mill on Copper mountain is treating about 40 tons a day. A splendid vein 4 to 5 feet wide, carrying gold, zinc and lead, is being operated with very satisfactory results.

Notes/Text been Edited:
Fixed the wrongfully words in this text.
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Above Info was Last Updated on 10.11.2023 (17:37:24)
Above Info was First Seen 10.11.2023

Type/Category of Info:
General Mining News
Info Source From:
PROFITS; A Journal of Finance and Mining Worth While. Volume: 4 [IV], Issue No. 33
Info Publication Date:
November 12, 1904
Info found on page:
5
Info Title:
Sioux Falls Co. Mill & Mine Happenings
Colorado Springs, Nov. 9.—The Sioux Falls Company, operating on the Fluorine property, is treating in the neighborhood of 100 tons per day in their mill on the property, the majority of ore coming from a big open cut.
graphic for visual presentation of text They have of late been pushing work in a tunnel, which has now reached a point of over 200 feet from the portal, where they have now encountered a vein measuring from 10 to 20 feet in width and from 65 feet below their lowest workings, which proves the continuity of the ore body with depth.
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Above Info was Last Updated on 01.10.2023 (09:49:34)
Above Info was First Seen 01.10.2023

Type/Category of Info:
General Mining News
Info Source From:
PROFITS; A Journal of Finance and Mining Worth While. Volume: 4 [IV], Issue No. 29
Info Publication Date:
October 15, 1904
Info found on page:
4
Info Title:
Sioux Falls Mill Operating Sucessfully
Colorado Springs, Col., Oct. 12.—Among the cyanide plants that are now operating successfully that of the Sioux Falls Company is conspicuous. This company is operating a mill on the Fluorine Company on Copper Mountain, and is making a saving of 60 per cent, on ores running $4 to $12 to the ton, treating at a cost of less than $3 to a ton.
Notes/Text been Edited:
Abstracted
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Above Info was Last Updated on 27.09.2023 (08:20:25)
Above Info was First Seen 27.09.2023

Type/Category of Info:
General Mining News
Info Source From:
PROFITS; A Journal of Finance and Mining Worth While. Volume: 4 [IV], Issue No. 29
Info Publication Date:
October 15, 1904
Info found on page:
4
Info Title:
Mills Partly Shut Down in September 1904
Colorado Springs, Col., Oct. 12.—The September output of district production was impacted by unknown amount by the shutting down part of the month of the Dorcas mill at Florence owing to the necessity for repairs in the machinery, as was also the case in the Sioux Falls plant in this district.
Notes/Text been Edited:
Abstracted and partly rewritten from source text.
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Above Info was Last Updated on 27.09.2023 (08:16:40)
Above Info was First Seen 27.09.2023

Type/Category of Info:
General Mining News
Info Source From:
PROFITS; A Journal of Finance and Mining Worth While. Volume: 4 [IV], Issue No. 10
Info Publication Date:
June 4, 1904
Info found on page:
9
Info Title:
Sioux Falls Co. Reports Progress
The Sioux Falls Company report that the grade of ore from the Fluorine claim has a value of $4.00 to $6.00 per ton and as it has been roasted by nature it only requires pulverization and a few hours to treat by the cyanide treatment. They claim that they are breaking, hauling and treating the ores at a total cost of less than $2.00 per ton. During the past six months an average of 75 tons per day have been treated.
graphic for visual presentation of text In view of the fact that it is now possible to treat ore valued as low as $4.00 per ton by the cyanide process, thousands of acres of ore in the District should be amenable to treatment.
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Above Info was Last Updated on 16.09.2023 (19:31:32)
Above Info was First Seen 16.09.2023

Type/Category of Info:
General Mining News
Info Source From:
PROFITS; A Journal of Finance and Mining Worth While. Volume: 3 [III], Issue No. 40
Info Publication Date:
January 2, 1904
Info found on page:
4
Info Title:
Sioux Falls Mill Formally Accepted
The new cyanide mill of the Sioux Falls and Cripple Creek M. & D. Company has been tested for a period of thirty days and formally accepted, a brick of 8½ pounds having been obtained. The problem of treating the low grade ores seems to have been solved by the use of this process.
graphic for visual presentation of text There are great quantities of this class of ore in the district, and now that this can be utilized, the output will be largely increased.
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Above Info was Last Updated on 03.09.2023 (09:43:36)
Above Info was First Seen 03.09.2023

Type/Category of Info:
General Mining News
Info Source From:
PROFITS; A Journal of Finance and Mining Worth While. Volume: 3 [III], Issue No. 35
Info Publication Date:
November 28, 1903
Info found on page:
2
Info Title:
Sioux Falls Mining & Leasing Co. Happenings
The Sioux Falls Mining & Leasing Company, operating on the Fluorine claim on Copper mountain, last week started operations with their new 100-ton cyanide mill.
graphic for visual presentation of text An immense body of low grade ore is available in the immediate vicinity of the mill, and handsome profits are expected. The ore is quarried from open cuts, which obviates the expense of hoisting and greatly reduces the cost of handling.
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Above Info was Last Updated on 01.09.2023 (17:03:48)
Above Info was First Seen 13.11.2010

Type/Category of Info:
General Mining News
Info Source From:
PROFITS; A Journal of Finance and Mining Worth While. Volume: 3 [III], Issue No. 34
Info Publication Date:
November 21, 1903
Info found on page:
4
Info Title:
Sioux Falls Mill Has Commenced Operations
The new 100-ton cyanide mill erected by the Sioux Falls & Cripple Creek Gold Mining Company at the foot of Copper mountain, north of Cripple Creek, has commenced operations. Four large cyanide tanks are in place, capable of holding over 100 tons of ore.
graphic for visual presentation of text A full plant of machinery and a 50 horse power boiler has been installed, and the large structure covers nearly an acre. The prospect for making a good proposition is very bright, now that the mill is in operation, for the company, which owns considerable property in this neighborhood and who have leases on other properties, have an enormous quantity of low grade ore in the immediate vicinity that from tests, proves to be ideal cyaniding ore.
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Above Info was Last Updated on 01.09.2023 (13:08:27)
Above Info was First Seen 01.09.2023

Type/Category of Info:
General Mining News
Info Source From:
PROFITS; A Journal of Finance and Mining Worth While. Volume: 3 [III], Issue No. 32
Info Publication Date:
November 7, 1903
Info found on page:
2
Info Title:
Sioux Falls Mill Expected Working Next Week
Inside of the coming week the cyanide mill erected by Sioux Falls, S.D., parties will be treating ore. This mill is located on Copper Mountain, in the extreme northern portion of the camp, where an abundance of low grade ore has been discovered.
graphic for visual presentation of text The ore will run from $7 to $20 per ton.
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Above Info was Last Updated on 01.09.2023 (08:19:03)
Above Info was First Seen 13.11.2010

Type/Category of Info:
General Mining News
Info Source From:
PROFITS; A Journal of Finance and Mining Worth While. Volume: 3 [III], Issue No. 25
Info Publication Date:
September 19, 1903
Info found on page:
2
Info Title:
Copper Mountain Mill Expected Working Next Week
The cyanide mill which is being erected to handle the low grade ores of Copper Mountain, is now practically completed, and in another week should be treating the gold beating rock found in this mountain.
graphic for visual presentation of text When this mill is completed, it should stimulate operations in the northern section of the camp, as the ore discovered in this section heretofore has been of too low a grade to justify shipping out of the district.
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Above Info was Last Updated on 29.08.2023 (20:07:40)
Above Info was First Seen 12.11.2010

Type/Category of Info:
General Mining News
Info Source From:
PROFITS; A Journal of Finance and Mining Worth While. Volume: 3 [III], Issue No. 23
Info Publication Date:
September 5, 1903
Info found on page:
2
Info Title:
Sioux Falls Mill Expected Ready
The indications are that the cyanide mill of the Sioux Falls & Cripple Creek Company on Copper mountain, will be placed in commission the first part of September.
graphic for visual presentation of text A large amount of ore has been blocked out, the treatment of which will be commenced immediately after the mill is completed.
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Above Info was Last Updated on 29.08.2023 (19:11:40)
Above Info was First Seen 12.11.2010

Type/Category of Info:
General Mining News
Info Source From:
PROFITS; A Journal of Finance and Mining Worth While. Volume: 3 [III], Issue No. 22
Info Publication Date:
August 29, 1903
Info found on page:
2
Info Title:
Sioux Falls Mill Construction Progressing Well
The Sioux Falls and Cripple Creek Company, operating the Fluorine claim on Copper mountain, is making good progress with the construction of its cyanide plant, which, when completed, will treat 100 tons of ore per day.
graphic for visual presentation of text The result of the operation of this mill will be watched with considerable interest, and indications are that Copper mountain will again be the centre of north end interest.
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Above Info was Last Updated on 29.08.2023 (08:00:21)
Above Info was First Seen 12.11.2010

Type/Category of Info:
General Mining News
Info Source From:
PROFITS; A Journal of Finance and Mining Worth While. Volume: 3 [III], Issue No. 15
Info Publication Date:
July 11, 1903
Info found on page:
2
Info Title:
Fluorine Shipping & Mill Will Happen
Shipments are now being made from the Fluorine claim on Copper mountain. The company operating this property recently sent out a number of shipments, the lowest of which ran $23.60, and the highest $39 per ton; assays however, have been secured running as high as $10,000 per ton.
graphic for visual presentation of text All the money for the construction of a 100-ton cyanide plant on Copper mountain has been raised and construction will be started in a few days.
Notes/Text been Edited:
Abstracted
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Above Info was Last Updated on 27.08.2023 (16:34:10)
Above Info was First Seen 12.11.2010

Type/Category of Info:
General Mining News
Info Source From:
Mining and Scientific Press. Volume: 97 [XCVII], Issue No. 2509; 8
Info Publication Date:
August 22, 1908
Info found on page:
241
Info Title:
Copper Mountain Mill Soon to Start Up
It is understood that the Copper Mountain cyanide mill, which has been closed for months, is to be started up again and kept in steady operation in the treatment of custom ore from the Fluorine and other Copper Mtn. properties.
graphic for visual presentation of text A. H. Head, representing Chicago and Kansas City parties, is in the district and is getting the plant in shape. The mill, which has a capacity of 100 tons per day, was formerly operated by the Sioux Falls Co.
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Above Info was Last Updated on 12.08.2023 (13:21:32)
Above Info was First Seen 29.09.2010

Type/Category of Info:
General Mining News
Info Source From:
Mining and Scientific Press. Volume: 97 [XCVII], Issue No. 2507; 6
Info Publication Date:
August 8, 1908
Info found on page:
169
Info Title:
Copper Mountain Mill Might Resume
Negotiations are now pending and will be concluded within a few days for the resumption of operations on the Copper Mtn. cyanide mill owned by the Brockton-Alaska Gold Mining Co.
graphic for visual presentation of text Bull and associates, who opened up a large body of low-grade ore some time ago on the Flourine property, owned by the Montreal Mining & Milling Co., will operate the mill which has been idle for over two years.
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Above Info was Last Updated on 12.08.2023 (09:37:09)
Above Info was First Seen 29.09.2010

Type/Category of Info:
General Mining News
Info Source From:
Mining and Scientific Press. Volume: 96 [XCVI], Issue No. 2497; 22
Info Publication Date:
May 30, 1908
Info found on page:
723
Info Title:
Fluorine Lessee Wants Reopen Cyanide Mill
H. L. Bull, who has leased the Fluorine property on Copper Mtn., is planning to open the old cyanide mill on that property.
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Above Info was Last Updated on 08.08.2023 (09:33:41)
Above Info was First Seen 08.08.2023

Type/Category of Info:
General Mining News
Info Source From:
Mining Science. Volume: 62 [LXII], Issue No. 1588
Info Publication Date:
July 7, 1910
Info found on page:
18
Info Title:
Copper Mountain Mill Shut Down Again
The Copper Mountain mill was in operation a short time, but has again been shut down.
Notes/Text been Edited:
Slightly rewritten from source text
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Above Info was Last Updated on 24.04.2023 (10:08:09)
Above Info was First Seen 11.07.2010

Type/Category of Info:
General Mining News
Info Source From:
Mining Science. Volume: 61 [LXI], Issue No. 1584
Info Publication Date:
June 9, 1910
Info found on page:
548
Info Title:
Copper Mountain Mill May 1910 Output
The Copper Mountain mill started during the month of May, though little but experimental work was attempted. The plant is reported making a good percentage in saving of the low-grade oxidized ore from the Fluorine mine, and it is estimated to have processed 250 tons with an average value of $3.50 giving a total value of $875.
Notes/Text been Edited:
Abstracted from source text in table and restyled/written to sentence form.
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Above Info was Last Updated on 21.04.2023 (18:46:22)
Above Info was First Seen 29.06.2010

Type/Category of Info:
General Mining News
Info Source From:
Mining Science. Volume: 58 [LVIII], Issue No. 1503
Info Publication Date:
November 19, 1908
Info found on page:
416
Info Title:
Fluorine Mill Cleanup Result
In a recent clean-up at the Fluorine mill on Copper Mtn., after a months run, bullion to the value of $6,250 was produced from about 2,000 tons.
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Above Info was Last Updated on 09.04.2023 (08:06:49)
Above Info was First Seen 16.06.2010

Type/Category of Info:
General Mining News
Info Source From:
Mining Science. Volume: 58 [LVIII], Issue No. 1498
Info Publication Date:
October 15, 1908
Info found on page:
317
Info Title:
Old Copper Mountain Mill Runs Successfully on Fluorine Ore
The old mill on Copper mountain, formerly operated by the Sioux Falls M. & M. Co., is being successfully operated and is treating about 75 tons of ore per day.
graphic for visual presentation of text This ore is produced by the Fluorine mine. The run is experimental and if satisfactory the tonnage will be increased and work will be carried on continuously.
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Above Info was Last Updated on 07.04.2023 (09:03:46)
Above Info was First Seen 16.06.2010

Type/Category of Info:
General Mining News
Info Source From:
Mining Science. Volume: 58 [LVIII], Issue No. 10
Info Publication Date:
September 3, 1908
Info found on page:
197
Info Title:
Copper Mountain Mill Been Overhauled and Remodeled
The old Copper Mountain mill has been overhauled and remodeled for the purpose of treating the ore from the Fluorine property. It will have a capacity of about 50 tons per day.
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Above Info was Last Updated on 01.04.2023 (09:01:12)
Above Info was First Seen 15.06.2010

Type/Category of Info:
General Mining News
Info Source From:
Mining Science. Volume: 58 [LVIII], Issue No. 6
Info Publication Date:
August 6, 1908
Info found on page:
116
Info Title:
Copper Mountain Mill to Resume?
Negotiations are pending looking toward the resumption of operations on the Copper Mountain cyanide mill owned by the Brockton-Alaska G. M. Co.
graphic for visual presentation of text The mill has a capacity of about 50 tons per day and is in very good condition.
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Above Info was Last Updated on 01.04.2023 (07:53:13)
Above Info was First Seen 14.06.2010

Type/Category of Info:
General Mining News
Info Source From:
Mining Reporter. Volume: 54 [LIV], Issue No. 4
Info Publication Date:
July 26, 1906
Info found on page:
94
Info Title:
Sioux Falls Mill Sold
Rhyolite-Beacon.—The president of this company has recently purchased for it the cyanide plant of the Sioux Mining Company, located on Copper mountain. Five thousand dollars was the purchase price.
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Above Info was Last Updated on 23.02.2023 (12:07:01)
Above Info was First Seen 23.02.2023

Type/Category of Info:
Article
Info Source From:
Mining Reporter. Volume: 50 [L], Issue No. 9
Info Publication Date:
September 1, 1904
Info found on page:
215
Info Title:
Lois Mill Description
The Lois mill of the Sioux Falls Company has been in active operation since November 1903 and is only at the present writing temporarily closed down for repairs.
graphic for visual presentation of textThe Lois has 4 tanks of only seventy-five tons capacity, where the strength of solution used varies, but averages 4 lb.
graphic for visual presentation of textValue of ore tested is $4.00 and the length of treatment is 36 hours. Percentage of extraction is 75-80% and the cost of mining and milling is $1.30 at Lois mill.
graphic for visual presentation of text Dry crushing is practiced and is undoubtedly preferable where the product required is coarse and no separation of sands and slimes is necessary for treatment. The fineness of crushing is 6 mesh, and the entire crushing plant consists of one gyratory and one set of rolls, which is comparatively simple as crushing plants go.
graphic for visual presentation of text The following diagram show the process of crushing employed in the Lois mill:
graphic for visual presentation of text 1. From bins the ore goes to bar grizzly with half-inch spaces.
graphic for visual presentation of text 2. The oversize goes to gyratory crusher, the undersize to an elevator delivering to a six-mesh shaking screen.
graphic for visual presentation of text 3. The material from the gyratory crusher joins the undersize from the grizzly.
graphic for visual presentation of text 4. The oversize from the shaking screen goes to rolls, the undersize from the screen goes to an elevator which delivers to finished product bin.
graphic for visual presentation of text 5. The crushed material from the rolls also goes by elevator to finished product bin.
graphic for visual presentation of text 6. From finished product bin the material is trammed to tanks.
graphic for visual presentation of text
graphic for visual presentation of text The loss of cyanide in the mill is not excessive, as the loss is said to amount to almost nothing. A failing off in the strength occurs during the first few hours of treatment and afterwards the strength again increases to nearly the original amount, an apparent regeneration of cyanide taking, place within the vat.
graphic for visual presentation of text The method of precipitation is the ordinary one by means of zinc shavings, and no particular difficulty in this direction seems to have been encountered.
Notes/Text been Edited:
Abstracted and quite some rewritten from larger text about 'Cyanide Practice of Cripple Creek District'
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Above Info was Last Updated on 28.09.2022 (16:39:14)
Above Info was First Seen 31.03.2011

Type/Category of Info:
General Mining News
Info Source From:
Mining Reporter. Volume: 50 [L], Issue No. 1
Info Publication Date:
July 7, 1904
Info found on page:
18
Info Title:
Sioux Falls Mill June Output
The June output of the Sioux Falls mill was 2,000 tons at an average value of $4 for a total of $8,000.
Notes/Text been Edited:
Abstracted from source text in table and restyled/written to sentence form.
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Above Info was Last Updated on 19.09.2022 (09:29:14)
Above Info was First Seen 14.05.2010

Type/Category of Info:
General Mining News
Info Source From:
Mining Reporter. Volume: 49 [XLIX], Issue No. 23
Info Publication Date:
June 9, 1904
Info found on page:
592
Info Title:
Sioux Falls Mill May Output
The May output of the Sioux Falls mill was 2,000 tons at an average value of $5 for a total of $10,000.
Notes/Text been Edited:
Abstracted from source text in table and restyled/written to sentence form.
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Above Info was Last Updated on 15.09.2022 (14:38:47)
Above Info was First Seen 15.09.2022

Type/Category of Info:
General Mining News
Info Source From:
Mining Reporter. Volume: 49 [XLIX], Issue No. 18
Info Publication Date:
May 5, 1904
Info found on page:
463
Info Title:
Sioux Falls Mill April Output
The April output of the Sioux Falls mill was 2,100 tons at an average value of $4 for a total of $8,400.
Notes/Text been Edited:
Abstracted from source text in table and restyled/written to sentence form.
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Above Info was Last Updated on 07.09.2022 (08:03:44)
Above Info was First Seen 07.09.2022

Type/Category of Info:
General Mining News
Info Source From:
Mining Reporter. Volume: 49 [XLIX], Issue No. 15
Info Publication Date:
April 14, 1904
Info found on page:
384
Info Title:
Sioux Falls Mill Treats 100 Tons Each Day
SIOUX FALLS COMPANY.—It is reported that this company, which owns the Fluorine claim, is treating 100 tons of ore daily at a cost of $2 per ton, this including cost of breaking and hauling. The ore treated runs about $5 a ton, allowing the Company a good profit.
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Above Info was Last Updated on 04.09.2022 (11:37:00)
Above Info was First Seen 04.09.2022

Type/Category of Info:
General Mining News
Info Source From:
Mining Reporter. Volume: 49 [XLIX], Issue No. 14
Info Publication Date:
April 7, 1904
Info found on page:
358
Info Title:
Sioux Falls Mill March Output
The March output of the Sioux Falls mill was 2,500 tons at an average value of $4.50 for a total of $11,250.
Notes/Text been Edited:
Abstracted from source text in table and restyled/written to sentence form.
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Above Info was Last Updated on 03.09.2022 (11:11:04)
Above Info was First Seen 03.09.2022

Type/Category of Info:
General Mining News
Info Source From:
Mining Reporter. Volume: 49 [XLIX], Issue No. 10
Info Publication Date:
March 10, 1904
Info found on page:
253
Info Title:
Sioux Falls Mill February Output
The February output of the Sioux Falls mill was 1,000 tons at an average value of $4 for a total of $4,000.
Notes/Text been Edited:
Abstracted from source text in table and restyled/written to sentence form.
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Above Info was Last Updated on 30.08.2022 (09:16:58)
Above Info was First Seen 30.08.2022

Type/Category of Info:
General Mining News
Info Source From:
Mining Reporter. Volume: 49 [XLIX], Issue No. 3
Info Publication Date:
January 21, 1904
Info found on page:
69
Info Title:
Sioux Cyanide Plant Treats 50-Tons Daily
Sioux Falls.—The cyanide plant on Spring Creek, operated by this company, is treating fifty tons a day, saving, it is said, 95% of the values. The ore coming from the Fluorine and Fort Wilcox claims on Copper mountain assays about $8 a ton.
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Above Info was Last Updated on 26.08.2022 (08:25:01)
Above Info was First Seen 26.08.2022

Type/Category of Info:
General Mining News
Info Source From:
Mining Reporter. Volume: 49 [XLIX], Issue No. 2
Info Publication Date:
January 14, 1904
Info found on page:
44
Info Title:
Sioux Falls Mill First Run a Success
Sioux Falls.—This company, whose cyanide plant was completed on Copper mountain a short time ago, made its first run recently, since taking the mill over from the contractors. A clean-up was made after a four days’ run, the result being a satisfactory amount of bullion.
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Above Info was Last Updated on 25.08.2022 (08:55:24)
Above Info was First Seen 25.08.2022

Type/Category of Info:
Article
Info Source From:
Mineral Resources of the United States. Volume: 23 [XXIII]
Info Publication Date:
August 1907
Info found on page:
238
Info Title:
Sioux Falls Mill Was Idle in 1906
During the year 1906, the Sioux Falls plant were idle.
Notes/Text been Edited:
Abstracted and slightly rewritten from source text.
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Above Info was Last Updated on 03.07.2022 (03:17:05)
Above Info was First Seen 10.05.2010

Type/Category of Info:
General Mining News
Info Source From:
Mining Reporter. Volume: 52 [LII], Issue No. 17
Info Publication Date:
October 26, 1905
Info found on page:
425
Info Title:
Sioux Falls Mill Treat 20-Tons a Day
Sioux Falls Mill—Twenty tons per day are being treated at the cyanide plant of this company. The process is said to be working satisfactorily and gold bricks are produced at regular intervals.
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Above Info was Last Updated on 03.03.2022 (22:54:40)
Above Info was First Seen 04.05.2010

Type/Category of Info:
General Mining News
Info Source From:
Mining Reporter. Volume: 52 [LII], Issue No. 12
Info Publication Date:
September 21, 1905
Info found on page:
297
Info Title:
Sioux Falls Mill Works Fluorine Ore
Sioux Falls—The cyanide mill is operating on ore from the Fluorine on Copper Mountain.
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Above Info was Last Updated on 01.03.2022 (08:48:57)
Above Info was First Seen 03.05.2010

Type/Category of Info:
Article
Info Source From:
Mining Reporter. Volume: 52 [LII], Issue No. 7
Info Publication Date:
August 17, 1905
Info found on page:
165
Info Title:
Lois Mill Resumed Operation, a Year's Progress in Cyaniding
Since the last report of the condition of cyaniding in the Cripple Creek district given in Mining Reporter (September 1, 1904), many changes have taken place as regards the mills in active operation, but comparatively little in the general milling practice. The year has been marked by exceptional activity in mill construction but closes with but a slight increase of tonnage over that reported a year ago. Only two mills, the Homestake and the R. E. A. and A., were then running with an approximate capacity of 300 tons per day. Four mills are now in active operation, but the aggregate tonnage does not exceed 375 tons per day.
graphic for visual presentation of text The Lois mill, on Copper mountain, has resumed operations under a new company, after being closed down the greater part of the year.
graphic for visual presentation of text The Lois mill has a 75 tons Capacity with 4 Tanks being 6 x 18 feet each and Approximate capacity of 75 tons. The Crushing mesh is 5, and the Strength of strong solution is 4 lbs., with a Loss of KCN per ton of ore of ¼ lb. Value of ore treated is $3.50, and the Tailings assay are 0.45. Length of treatment are 70 hours, with a Cost of mining and milling of $1.50. Lime used per ton are 4 lbs.
graphic for visual presentation of text As a rule the nature of the ore in the district does not admit of cyanidation without roasting, to any great depth, but an area including portions of Bull, Ironclad and Globe hills seems to be an exception to the general rule.
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Above Info was Last Updated on 26.02.2022 (14:39:04)
Above Info was First Seen 03.05.2010

Type/Category of Info:
General Mining News
Info Source From:
The Engineering and Mining Journal. Volume: 90 [XC], Issue No. 1
Info Publication Date:
July 2, 1910
Info found on page:
37
Info Title:
Fluorine Ore Mills Good
Fluorine Mine—Ore mined from the surface deposit of this mine is being milled successfully, it is said, at the rate of 75 tons per day, at the Copper Mountain mill.
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Above Info was Last Updated on 18.12.2021 (09:02:23)
Above Info was First Seen 24.03.2010

Type/Category of Info:
General Mining News
Info Source From:
The Engineering and Mining Journal. Volume: 80 [LXXX], Issue No. 15
Info Publication Date:
October 14, 1905
Info found on page:
709
Info Title:
Copper Mountain Mill Doing Good Work
A cyanide mill is in operation on Copper mountain, north of town. This is handling the low-grade ore from Copper mountain, and is reported to be doing good work.
Notes/Text been Edited:
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Above Info was Last Updated on 10.10.2021 (18:51:24)
Above Info was First Seen 20.08.2021