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Blue Flag 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:
Mining Reporter. Volume: 53 [LIII], Issue No. 22
Info Publication Date:
May 31, 1906
Info found on page:
546
Info Title:
Blue Flag Cyanide Mill Plans
Blue Flag.—Plans and specifications are being drawn up for a 100-ton cyanide mill, construction of which will probably commence by the middle of June. The plant will be located on Raven hill and will cost about $20,000.
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Above Info was Last Updated on 20.02.2023 (09:33:06)
Above Info was First Seen 04.06.2010

Type/Category of Info:
General Mining News
Info Source From:
Mining Reporter. Volume: 54 [LIV], Issue No. 8
Info Publication Date:
August 23, 1906
Info found on page:
194
Info Title:
Blue Flag Cyanide Mill Erection Commenced
Blue Flag.—Work was commenced last week on the erection of a 150-ton cyanide plant at this property. Large bodies of low grade ore have been opened up for treatment.
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Above Info was Last Updated on 25.02.2023 (08:07:08)
Above Info was First Seen 25.02.2023

Type/Category of Info:
General Mining News
Info Source From:
The Mining World. Volume: 26 [XXVI], Issue No. 6
Info Publication Date:
February 9, 1907
Info found on page:
226
Info Title:
Blue Flag Cyanide Mill Will Run Beacon Hill Ore
Denver.—The Blue Flag cyanide mill on Raven hill will be running this week—50 tons daily. It will treat custom ores from Beacon hill properties.
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Above Info was Last Updated on 12.11.2023 (05:54:34)
Above Info was First Seen 12.11.2023

Type/Category of Info:
General Mining News
Info Source From:
Mining Reporter. Volume: 55 [LV], Issue No. 8
Info Publication Date:
February 21, 1907
Info found on page:
189
Info Title:
Blue Flag Cyanide Plant Near Completion
A cyanide plant in progress of erection at the Blue Flag property is being very near completion.
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Above Info was Last Updated on 09.07.2022 (22:04:45)
Above Info was First Seen 06.06.2010

Type/Category of Info:
Special/Editorial Correspondence
Info Source From:
The Mining and Scientific Press. Volume: 94 [XCIV], Issue No. 19
Info Publication Date:
May 11, 1907
Info found on page:
589
Info Title:
Blue Flag Mill to Commence Operations
Cripple Creek, Colorado.
graphic for visual presentation of textBlue Flag Cyanide Mill.
graphic for visual presentation of text The cyanide mill of the Blue Flag Mining & Milling Co., on Bull hill, will commence operations during the next few days. Twenty-five tons of ore per day only will be treated at first until the plant is in full working order. The low-grade oxidized ores of the Blue Flag mine will be handled by the mill exclusively, there being several hundred tons already broken in the stopes.
Above Info was Last Updated on 10.10.2021 (18:51:24)
Above Info was First Seen 24.05.2021

Type/Category of Info:
General Mining News
Info Source From:
The Mining World. Volume: 26 [XXVI], Issue No. 19
Info Publication Date:
May 11, 1907
Info found on page:
607
Info Title:
Blue Flag Mill to Operate Very Soon

Denver.—The cyanide mill of the Blue Flag Mining & Milling Company on BullRaven hill will probably be in operation this week; 25 tons a day of low-grade oxidized ore now being broken in the Blue Flag property, will be increased to 75 tons daily by the employment of a larger force.

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Above Info was Last Updated on 20.11.2023 (09:14:01)
Above Info was First Seen 20.11.2023

Type/Category of Info:
Special/Editorial Correspondence
Info Source From:
The Mining and Scientific Press. Volume: 94 [XCIV], Issue No. 21
Info Publication Date:
May 25, 1907
Info found on page:
651
Info Title:
Blue Flag Mill Looking Good
Cripple Creek, Colorado.
graphic for visual presentation of textExperiments on Low-Grade Ores.
graphic for visual presentation of text The experimental tests being conducted at the new Blue Flag cyanide mill are turning out favorably. About 25 tons of the low-grade ore is being handled, which will be increased to 75 tons per day when the tests are concluded.
Above Info was Last Updated on 10.10.2021 (18:51:24)
Above Info was First Seen 24.05.2021

Type/Category of Info:
General Mining News
Info Source From:
The Mining World. Volume: 26 [XXVI], Issue No. 26
Info Publication Date:
June 29, 1907
Info found on page:
819
Info Title:
Blue Flag Mill Expected to Commence Work Soon
Cripple Creek.—The Blue Flag mill, adjoining the Joe Dandy property, will also commence treating ore from the Blue Flag this month.
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Above Info was Last Updated on 26.11.2023 (09:40:47)
Above Info was First Seen 26.11.2023

Type/Category of Info:
General Mining News
Info Source From:
The Mining World. Volume: 27 [XXVII], Issue No. 3
Info Publication Date:
July 20, 1907
Info found on page:
116
Info Title:
Blue Flag Mill Upgraded

Denver.—The Blue Flag Mining Co. is installing a new crusher in its mill on BullRaven hill. The works will start up this week with a capacity of 75 tons a day. There is a large supply of ore on hand.

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Above Info was Last Updated on 27.11.2023 (17:18:58)
Above Info was First Seen 27.11.2023

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:
Blue Flag Mill Started in 1907
The Blue Flag Company's new mill was started in 1907.
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Above Info was Last Updated on 03.07.2022 (03:44:26)
Above Info was First Seen 10.05.2010

Type/Category of Info:
General Mining News
Info Source From:
The Mining World. Volume: 27 [XXVII], Issue No. 9
Info Publication Date:
August 31, 1907
Info found on page:
364
Info Title:
Blue Flag Mill Getting Ready to Start
Cripple Creek—The Blue Flag mill is getting ready to start.
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Above Info was Last Updated on 01.12.2023 (08:36:35)
Above Info was First Seen 26.11.2010

Type/Category of Info:
General Mining News
Info Source From:
The Mining World. Volume: 27 [XXVII], Issue No. 14
Info Publication Date:
October 5, 1907
Info found on page:
570
Info Title:
Blue Flag G. M. Co. Mill Runs After Improvements at Property
Cripple Creek.—The new cyanide mill on Raven hill, built by the Blue Flag Gold Mining Co., is making its initial runs. Its capacity is 50 tons a day.
graphic for visual presentation of text A new double hoisting engine has been placed in the Blue Flag shaft house and other improvements added to make certain that all grades of ore can be profitably handled.
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Above Info was Last Updated on 06.12.2023 (17:15:57)
Above Info was First Seen 06.12.2023

Type/Category of Info:
General Mining News
Info Source From:
The Mining World. Volume: 28 [XXVIII], Issue No. 15
Info Publication Date:
April 11, 1908
Info found on page:
612
Info Title:
Blue Flag Mill March 1908 Output
During March the Blue Flag plant processed 1,000 tons making a bullion value of $4,000.00.
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Above Info was Last Updated on 21.12.2023 (17:21:49)
Above Info was First Seen 21.12.2023

Type/Category of Info:
General Mining News
Info Source From:
The Mining World. Volume: 28 [XXVIII], Issue No. 17
Info Publication Date:
April 25, 1908
Info found on page:
686
Info Title:
Blue Flag Mill Improves
Denver—The Blue Flag Mining Co., on Raven hill, during the month of March, treated 600 tons of ore of an average value of $6 and shipped several thousand dollars' worth of bullion. A Tatman pulverizer is being added.
graphic for visual presentation of text The company's Laurium plant near Breckenridge is in constant operation and is turning out a high-grade concentrate. Another pulverizer is being added to this plant.
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Above Info was Last Updated on 23.12.2023 (09:06:38)
Above Info was First Seen 23.12.2023

Type/Category of Info:
General Mining News
Info Source From:
The Mining World. Volume: 28 [XXVIII], Issue No. 20
Info Publication Date:
May 16, 1908
Info found on page:
806
Info Title:
Blue Flag Mill April 1908 Output
During April the Blue Flag plant processed 1,200 tons making a bullion value of $7,200.
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Above Info was Last Updated on 25.12.2023 (11:21:03)
Above Info was First Seen 25.12.2023

Type/Category of Info:
Special/Editorial Correspondence
Info Source From:
Mining and Scientific Press. Volume: 96 [XCVI], Issue No. 2500; 25
Info Publication Date:
June 20, 1908
Info found on page:
834
Info Title:
Blue Flag Mill Closed for Improvements
The Blue Flag, at Breckenridge, has suspended operations for a period of two months. Some of the machinery in the mill recently gave out, and the cessation of operation was originally made to allow time for repairs. Now the management has decided to completely re-equip the plant with new machinery.
graphic for visual presentation of text To that end, additional electric appliances, drills, and minor equipment will be purchased.
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Above Info was Last Updated on 09.08.2023 (19:48:09)
Above Info was First Seen 09.08.2023

Type/Category of Info:
General Mining News
Info Source From:
The Mining World. Volume: 29 [XXIX], Issue No. 6
Info Publication Date:
August 8, 1908
Info found on page:
217
Info Title:
Blue Flag Mill To Resume Work in August
Cripple Creek—During August the Blue Flag Co.'s mill will resume.
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Above Info was Last Updated on 30.12.2023 (12:26:01)
Above Info was First Seen 30.12.2023

Type/Category of Info:
General Mining News
Info Source From:
Mining and Scientific Press. Volume: 97 [XCVII], Issue No. 2512; 11
Info Publication Date:
September 12, 1908
Info found on page:
340
Info Title:
Blue Flag Mill Resumed Operations
The Blue Flag mill, on the east slope of Raven hill, resumed operations last week, after a close-down of some time. The plant has been thoroughly overhauled and repaired, and is now in good shape to handle the output of the mine.
graphic for visual presentation of text No attempt is being made to operate the plant at its full capacity, and only a portion of the full force was put to work. The mill is treating ore from the mine, having an average value of about $4 per ton.
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Above Info was Last Updated on 12.08.2023 (15:35:30)
Above Info was First Seen 28.09.2010

Type/Category of Info:
General Mining News
Info Source From:
The Western Investors Review. Volume: 15 [XV], Issue No. 12
Info Publication Date:
July 1909
Info found on page:
10
Info Title:
Blue Flag Mill June 1909 Output
During June the Blue Flag plant processed 1,250 tons with an average value of $6.00 and a bullion value of $7,500.
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Above Info was Last Updated on 24.08.2023 (12:21:29)
Above Info was First Seen 19.10.2010

Type/Category of Info:
Article
Info Source From:
The Mineral Industry, Its Statistics, Technology & Trade in the U.S. and Other Countries. Volume: 17 [XVII]
Info Publication Date:
July 26, 1909
Info found on page:
919
Info Title:
Blue Flag Uses a Tatman Grinding Mill

Of 1908 Progress in Crushing Machinery finds the Tatman Grinding Mill in use for instance at the Blue Flag cyanide mill at Cripple Creek, Colo., where it is used for grinding material from a Dodge breaker so that it will pass a 16-mesh screen.

  • It resembles a Chili mill in having a central shaft and radial arms carrying mullers which travel around on a ring shaped die, but it differs in that the die is trough shaped and the mullers, of which there are seven, are rounded to fit the trough.
  • The mill is 7 ft. in diameter and 4½ ft. high and weighs 18,000 lb.
  • It reduces 50 tons of quartz from ½ in. to 20 mesh in 24 hours using 7 h.p.
  • The chrome steel die ring is 6 ft. in diameter.
  • The mullers with chrome steel tires are 22 in. in diameter and weigh 800 lb. each.
  • The central shaft makes 100 r.p.m.
  • The screen surface is 2 ft. high.
  • For more info, see F. L. Barker's article from page 481 in the May 1908 issue of Mines and Minerals (Volume XXVIII).
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Above Info was Last Updated on 25.05.2022 (08:34:18)
Above Info was First Seen 25.05.2022

Type/Category of Info:
General Mining News
Info Source From:
Mining Science. Volume: 61 [LXI], Issue No. 1565
Info Publication Date:
January 27, 1910
Info found on page:
91
Info Title:
Blue Flag Mill Operations Resumed
Operations have been resumed at the Blue Flag company's mill, on Raven hill, and it is again treating between 40 and 50 tons of ore daily.
graphic for visual presentation of text It was temporarily shut down to permit of further development of large bodies of low-grade ore found in the Blue Flag mine, and it is understood that sufficient tonnage has been blocked out to keep it in operation at full capacity for an indefinite period.
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Above Info was Last Updated on 11.04.2023 (22:00:33)
Above Info was First Seen 24.06.2010

Type/Category of Info:
General Mining News
Info Source From:
Mining Science. Volume: 61 [LXI], Issue No. 1571
Info Publication Date:
March 10, 1910
Info found on page:
236
Info Title:
Blue Flag Mill February 1910 Output
During February the Blue Flag plant processed 700 tons with an average value of $6.00 giving a total value of $4,200.00.
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Above Info was Last Updated on 18.04.2023 (09:05:09)
Above Info was First Seen 27.06.2010

Type/Category of Info:
General Mining News
Info Source From:
Mining Science. Volume: 61 [LXI], Issue No. 1575
Info Publication Date:
April 7, 1910
Info found on page:
331
Info Title:
Blue Flag Mill March 1910 Output
During March the Blue Flag plant on Raven Hill processed 1,240 tons with an average value of $6.00 giving a total value of $7,440.
Notes/Text been Edited:
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Internet Source Text Link(s) {Found/Seen/Known]:
Above Info was Last Updated on 19.04.2023 (09:09:09)
Above Info was First Seen 27.06.2010

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:
Blue Flag Mill Still Inactive
The Blue Flag mill, on Raven hill, is still inactive, but will shortly resume.
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Above Info was Last Updated on 24.04.2023 (10:08:46)
Above Info was First Seen 11.07.2010

Type/Category of Info:
General Mining News
Info Source From:
The Engineering and Mining Journal. Volume: 90 [XC], Issue No. 4
Info Publication Date:
July 23, 1910
Info found on page:
186
Info Title:
Blue Flag Shuts Its Mill and Ships Elsewhere
Blue Flag—Shipments from this mine, between Bull and Raven hills, are now being made to outside plants, it being stated that the ore produced is too high grade for treatment at the company mill on the ground, which has been shut down.
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Above Info was Last Updated on 02.02.2023 (17:07:48)
Above Info was First Seen 24.03.2010

Type/Category of Info:
General Mining News
Info Source From:
Mining Science. Volume: 62 [LXII], Issue No. 1612
Info Publication Date:
December 22, 1910
Info found on page:
610
Info Title:
Blue Flag Mill Tanks Cleaned Out

The tanks in the cyanide plant of the Blue Flag have been cleaned out, some 50 tons of material being washed down the side of BullRaven hill.

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Corrected location info
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Above Info was Last Updated on 05.05.2023 (20:10:18)
Above Info was First Seen 12.07.2010

Type/Category of Info:
General Mining News
Info Source From:
Mining Science. Volume: 63 [LXIII], Issue No. 1616
Info Publication Date:
January 19, 1911
Info found on page:
73
Info Title:
Blue Flag Expected in Operation Within 2 Months
The Blue Flag mill will be in operation within 60 days.
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Above Info was Last Updated on 08.05.2023 (09:23:18)
Above Info was First Seen 08.05.2023

Type/Category of Info:
General Mining News
Info Source From:
Mining Science. Volume: 63 [LXIII], Issue No. 1637
Info Publication Date:
June 15, 1911
Info found on page:
628
Info Title:
Blue Flag Mill to Operate Next Month
It is stated that the Blue Flag mill will be operating next month treating high-grade rock from the (Continued to Page 40, Advertising Section)?{missing text from source]
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Above Info was Last Updated on 21.05.2023 (00:16:25)
Above Info was First Seen 20.05.2023

Type/Category of Info:
General Mining News
Info Source From:
Mining Science. Volume: 63 [LXIII], Issue No. 1639
Info Publication Date:
June 29, 1911
Info found on page:
675
Info Title:
Blue Flag Mill to Shortly Resume Operations
Operations are shortly to be resumed at the Blue Flag mill on Raven hill.
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Above Info was Last Updated on 21.05.2023 (07:58:00)
Above Info was First Seen 21.05.2023

Type/Category of Info:
General Mining News
Info Source From:
Mining Science. Volume: 64 [LXIV], Issue No. 1640
Info Publication Date:
July 6, 1911
Info found on page:
22
Info Title:
Blue Flag Mill Getting Ready To Start Again
The Blue Flag mill is undergoing an overhauling, getting ready to start up.
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Above Info was Last Updated on 21.05.2023 (16:45:39)
Above Info was First Seen 21.05.2023

Type/Category of Info:
General Mining News
Info Source From:
The Engineering and Mining Journal. Volume: 92 [XCII], Issue No. 8
Info Publication Date:
August 19, 1911
Info found on page:
374
Info Title:
Blue Flag Cyanide Mill Might Be Put to Work
Blue Flag—The cyanide plant on this property may be put in commission.
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Above Info was Last Updated on 02.02.2023 (17:12:27)
Above Info was First Seen 26.03.2019

Type/Category of Info:
General Mining News
Info Source From:
Mining Science. Volume: 65 [LXV], Issue No. 1677
Info Publication Date:
March 21, 1912
Info found on page:
ad32
Info Title:
Blue Flag Co. Happenings
The cyanide mill of the Blue Flag Co., on the company's estate on Raven hill, is in operation and treating about 40 tons daily of oxidized ores from a large new body opened. It runs about $4 per ton. The company is carrying on extensive development.
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Above Info was Last Updated on 26.06.2023 (13:43:56)
Above Info was First Seen 26.06.2023

Type/Category of Info:
Personals
Info Source From:
Mining Science. Volume: 65 [LXV], Issue No. 1681
Info Publication Date:
April 11, 1912
Info found on page:
336
Info Title:
Mr. John Masson Been Retained by Blue Flag Mining Co. As Metallurgist
John Masson, metallurgist, who has had much experience in milling in Australia, has been retained by the Blue Flag Mining Co. of Cripple Creek to make some changes in its plant and will be regularly employed as metallurgist.
Notes/Text been Edited:
Fixed spelling error
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Above Info was Last Updated on 27.06.2023 (09:15:36)
Above Info was First Seen 12.07.2010

Type/Category of Info:
General Mining News
Info Source From:
Mining Science. Volume: 65 [LXV], Issue No. 1690
Info Publication Date:
June 13, 1912
Info found on page:
xxxv
Info Title:
Blue Flag Mill Still Not Operating
The Blue Flag cyanide mill on Raven hill, owned by the Blue Flag Co., will not be in operation before the end of June. It will have a capacity of 150 tons a day.
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Above Info was Last Updated on 01.07.2023 (20:24:33)
Above Info was First Seen 15.07.2010

Type/Category of Info:
General Mining News
Info Source From:
Mining Science. Volume: 66 [LXVI], Issue No. 1699
Info Publication Date:
August 15, 1912
Info found on page:
xxv
Info Title:
Blue Flag Mill to Start Up Real Soon
The Blue Flag plant, which is a modern cyanide mill, will start up inside of a week. Since April 1, John Massion, who has had a good deal of experience in the Australian fields, has been supervising the rebuilding of the plant.
graphic for visual presentation of text He has installed two Chilean mills and four Dorr thickeners have been put in.
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Above Info was Last Updated on 05.07.2023 (11:17:23)
Above Info was First Seen 15.07.2010

Type/Category of Info:
General Mining News
Info Source From:
Mining Science. Volume: 66 [LXVI], Issue No. 1700
Info Publication Date:
August 22, 1912
Info found on page:
xxvii
Info Title:
Blue Flag Mill New Smokestack Raised
The new smoke stack has been raised over the mill building of the Blue Flag mine on Raven hill and the boiler is now being set in place and will be steamed up in the next few days.
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Above Info was Last Updated on 06.07.2023 (08:53:27)
Above Info was First Seen 06.07.2023

Type/Category of Info:
General Mining News
Info Source From:
Mining Science. Volume: 66 [LXVI], Issue No. 1703
Info Publication Date:
September 12, 1912
Info found on page:
xxvii
Info Title:
Blue Flag Mill Operating
After being closed down three months for repairs and changes, the Blue Flag mill, located on property owned by the company of that name, has resumed the grinding of ore. The plant has been materially enlarged under the direction of John Masson, a mill expert from Australia.
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Above Info was Last Updated on 07.07.2023 (09:43:03)
Above Info was First Seen 07.07.2023

Type/Category of Info:
General Mining News
Info Source From:
Mining Science. Volume: 66 [LXVI], Issue No. 1706
Info Publication Date:
October 3, 1912
Info found on page:
xxvii
Info Title:
Blue Flag Mill Satisfy After Week Operation
The Blue Flag mill has been in full operation a week. The results obtained so far have been satisfactory. The process involved is straight cyanide, the gold being dissolved by air agitation rather than leaching. The present capacity is 125 tons a day and the grade of the ore has been of the low class, not averaging more than $6.
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Above Info was Last Updated on 08.07.2023 (09:01:11)
Above Info was First Seen 08.07.2023

Type/Category of Info:
General Mining News
Info Source From:
The Mining and Scientific Press. Volume: 121 [CXXI], Issue No. 7
Info Publication Date:
August 14, 1920
Info found on page:
246
Info Title:
Blue Flag Happenings
Tests on Blue Flag ore at the plant of the Denver Engineering Works have proved satisfactory, and a flotation unit will be installed at the mill on Raven hill, to be running by the end of September. Equipment has been ordered.
graphic for visual presentation of text Development at the 1200 and 1400-ft. levels is reported to be encouraging both as to the quantity and grade of ore under development.
graphic for visual presentation of text
graphic for visual presentation of text The Blue Flag company owns property in the Patagonia mountains, Arizona, and following the recent development on the World's Fair group, immediately adjoining, the lease and option to purchase the Blue Flag group has been cancelled. The Arizona property is to be operated on company account.
Above Info was Last Updated on 02.02.2023 (17:09:17)
Above Info was First Seen 29.02.2020

Type/Category of Info:
General Mining News
Info Source From:
The Mining and Scientific Press. Volume: 121 [CXXI], Issue No. 22
Info Publication Date:
November 27, 1920
Info found on page:
776
Info Title:
Blue Flag Happenings
Drifting east toward the Cresson, the Blue Flag Gold Mining Co. is prospecting toward the Cresson with promise of soon entering a richer zone. The vein as now broken is a low-grade mill product.
graphic for visual presentation of text The Blue Flag is equipped with a milling plant not in operation at this time. Owing to poor ventilation during the recent heavy snow storms, work in the 1400 and 1200-ft. levels has been temporarily discontinued and is confined to the 800-ft. level.
Above Info was Last Updated on 02.02.2023 (17:09:01)
Above Info was First Seen 02.03.2020

Type/Category of Info:
General Mining News
Info Source From:
The Mining and Scientific Press. Volume: 121 [CXXI], Issue No. 22
Info Publication Date:
November 27, 1920
Info found on page:
776
Info Title:
Blue Flag Mill Not Running
The Blue Flag is equipped with a milling plant not in operation at this time.
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Abstracted from source text about the Blue Flag company
Above Info was Last Updated on 30.10.2020 (11:04:30)
Above Info was First Seen 02.03.2020

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