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OK City Mining News $2.oo The Year Elk City, Idaho, April 23, 1904 Vol. I. No. 17 MINING IN BLACK HILLS. The Last of Mr. Yates' Papers on the Homestake System of Stoping Ore.—Comparative Table of the Cost of Tim bering by the Different Methods. On account of the uneven size of the j rock, chutes are not generally used in i these stopes, but the carmen shovel the ! ore into cars, from the ..level of the track, there being as many places to shovel from as there are spaces between posts along the track. However, where the rock is soft and where it breaks fine, chutes are used to advantage. Should a large rock come down which the shoveler cannot break with a rock hammer, he moves his car to another opening until the "blockholcr" comes Two of these regular sets on each side of the stope are carried up as fast as the stope is worked, in which are placed the laders and air pipes. These A . , , f Another plan of working these stopes is now being carried out, by which at least 50 per cent of the sill timbers will be saved. Instead of the two outside tracks being in the stope, a drift is cut under the edge of each pillar of suffi cient height and width to receive one line of regular stope sets and tracks are laid in these. The timbers are put in place and the ore is broken down un til the sifi chamber is partly filled, the broken rock holding the timber sets in place. An opening is made in the broken rock through the center of the stope, in which another line of sets are No sills are laid between the rows and only six rows of posts are required, whereas eleven rows are required in other stopes. in these open sets and the two under the pillai ; may bo used again when the pillar is being taken out. The operation of these stopes has around. open sets also assist in ventilating the stope. put up. the loose rock being shoveled back against the posts to support them, The tracks will be laid brought about another change in the general working plan of the mine, which will make a material saving in the cos! of development. Timbered stopes cannot be worked economically more than 80 or 90 feet high, as the timber begins to crush of its own weight, while the untimbered stopes can be carried up 150 feet as well as 100. As a result the distance between new levels will be made 150 feet, which will effect a saving of one-third in de velopment work, and one-third more ore can be recovered from the stopes with the same sill work. TIMBERED STOPE Lin. ft. No. of or ft. Cost of ing and Pieces B. M. material framing Total 421 3,650 $ 474.50 $ 96.83 $ 571.33 2,077 16,616 2,160.80 477.71 2,638,51 , 2,410 13,255 1,723.15 506.10 2,229.25 . 2,261 12,435 1,616.55 474.18 2,090.73 4,537 266.85 22.69 289.54 . 13,020 75,906 3,795.30 379.53 4,174.83 . 2,^110 4,025 64.82 30.00 94.82 2,352 784 13.33 11.76 25.09 . 327.93 824.12 Saw Name of Piece— Sill floor posts .... Upper floor posts . Caps. Ties. Sills—203 long, 382 short Lagging. Lagging strips .... Wedges. 47 sill floor chutes, complete 215 upper floor bins, complete Ladders. Placing timbers arid chutes Breakage—10 per c nt lagging, 5 of posts, caps, ties 1.99 3.50 5.49 14 117 4,745.00 793.97 18,810.61 Total STOPE WORKED BY HOMESTAKE METHOD . 421 3,650 410 2,250 381 2,095 203 5,436 . 382 2,101 1,752 10,214 764 4,454 . 1,684 13,472 474.50 96.83 571.33 293.15 86.10 S79.25 272.35 80.01 352.36 121.80 12.18 133.98 105.05 10.50 115.55 510.70 51.07 561.77 222.70 25.27 244.97 673.37 57.36 740.96 1 12 1,00 2.12 22.08 121.92 10.08 44.40 10.08 44.40 2.80 30.80 20.98 230.83 22.85 4.00 7.00 11.00 . . . 758.16 . , 4,366.65 . . $3,108.15 500.34 -I . . $4,366.65 Sill floor posts Caps Ties . . ( Sills, long . . » Sills, short, Lagging Lagging to protect track Relief lagging Wedges 66 200 Manways— Upper floor posts Caps. Ties 99.84 34.32 34.32 28.00 209.85 22.85 96 "68 48 264 '48 264 96 560 720 4,197 . 1,440 457 28 235 k Lagging, floors Lagging, sides Drift pins .... Ladder '. Labo» standing sill floor timbers Total HÖMESTAKE METHOD Cost of material Sawing and framing Total When the stope is worked up 80 or 85 feet, raises are made to the level above through which the filling is to be dump ed, and the ore is then drawn out. While the ore is being drawn out the walls, and roof are carefully watched and all loose material is dressed down. No accident of a serious nature has oc curred in one of these stopes during the two years in which this method has 1 been employed that could ih any way be l attributed to the method. When one end has been emptied of I ore a section of the sill floor is lagged | and the filling is dumped in until it be gins to run over the lagging. In this j way the filling follows the shovelers and the walls of the stope are support ed at one end by the ore and at the oth- [ i WbcnBimU 1 ore bodies are worked by , this method no pillars are left in, but when one section is worked up a suffi cient heighth another is started at one end and the ore is left in until the en tire body is worked. Stoping without timber is not con fined to the Homestake mine, but there are certain features of the method as 1 employed here peculiar to the Home stake, and which are considered neces -\ sary to suit our conditions. In the Treadwell mine the sill floor is not open ed on the station level, but drifts are 1 run in the ledge and raises put up from these drifts to a level some 15 feet j which takes the place of the sill floor j timbers used in the Homestake. cost of the timber would in a great | raises and putting in chutes. The ac-j cessibility of the ore is another advan tage in favor of the Homestake method ' and becomes a necessity in a mine er by the waste. - above. No timber is required except | for chutes, but a back of ore is left in, The measure be offset by the coat of making 1 ... r , which furnishes nearly 4,000 tons of ore every -4 loin». As only a small per cent of the ore can be removed before the stope is fin j ished, there is of necessity a large re serve always on hand, which allows the mine to lay off whenever desirable, The present broken ore reserve in the mine is nearly one million tons. Following is a comparative table giv ing the cost of timber in a stope which has been worked and timbered by square ! sets . and the same stope if worked by the "Homestake method": JUMBO TO PAY DIVIDENDS. Frank Brown Says it. will Disburse $15,000.-Probably Monthly. "We expect to pay a dividend on the Jumbo in June," said Frank Brown, manager of the Buffalo Hump mine, who is at the Pacific. "It will be $15, 000, or one per cent, and after that dividends will be a regular monthly oc currence. ' ' Mr. Brown is also manager of the Del Rio and the Cracker Jack, and is up from the Hump to secure machinery for the Jumbo. r "The Jumbo is working 35 men now" he continued. "Fourteen of these are 0 n development and the balance are milling and in the stopes. We are milling the ore from tunnel No. 3 at the 500 foot level. Development work is in tunnel No. 4 at the 800 foot level. pleted and will be running by May 1 We have $35,000 or $40,000 worth of tailings to put through the mill as soon 1 as it starts. We have been getting ' about $ 15,000 a month off the plates , and about $6 000 a month has been^ go mg into the tailings. All our work on the Jumbo is now confined to the one claim, but we shall probably start de velopment on other claims during the summer. «The Del Rio is now working eight men and is making a good showing. 1 Some new machinery, including a stamp mill, will be put on the property this summer. «The Cracker Jack is working 20 men. The electric light plant is now 1 running, and the mill, which has been s h u t down since la»t fall, will be started ! j up within 30 days. It has a good body , «The* Lucky Lad has started up again j j and is working a full force of about 21 | down for two or three months, will be "The Liberty Bell will start up about J the first of the month. It has been I shut down for about a year. ] «The Atlas, owned by Spokane men, ' 'Our cyanide plant is Dearly com - | 0 f ore. The mill, which has been shut men. 1 started soon. j ,s working a full force and is making a 1 good showing. «The Concord Mining company, of Boston, is work? g 20 men on the Ajax. It intends to start work on St. Louis and the Mother Lode. No. 2 early in the summer. 1 hese claims have nevei before been worked. "j have just sent down eight men for the Diamond Hitch property, in the Elk City district, on which I took a bond recently for one year. The prop erty is owned by Orin Lamb of Lewis ton, Idaho. I expect to do 700 or 800 feet of tunnel work on the property', which has a good showing." —Spokane Spokesman-Review. CAN GET A SURVEY. New Ruling by the General Land Office. The following is an ecerpt from a re cent decision of the general land office in the case of W. M. Crandall, ex-parte on appeal from a decision of the U. S. surveyor general of Idaho denying him an order for the survey of certain pla cer mining claims of irregular shape on Salmon river: "Upon making a preliminary plat of the claims prior to the issuance of the order for survey you found that the Coarse Gold and Morton claims were long, narrow and irregular in form, and acting under departmental decisions in the case of the Miller placer (30 L. D. 325) and the Wood placer (32 L. D. 198) you refused to issue an order for sur vey of said claims informing applicant I that you would approve an order for survey of the remaining claims but that if he desired to include all of his loca tions in -Paid survey his remedy would consist of an appeal from your action. "Appeal was filed from your action alleging that you erred in applying the ! decisions cited to the case at bar for , the reason that these claims were loca ted long prior to the survey of the township; that they were not located 1 and designed to control the water sup ply but are bona fide placer locations and include only such ground as is val- -uable for its deposits of placer gold; j that to require applicant to conform j the system of public land survey would be a hardship upon him and ré'sult the taking in of a considerable area non-mineral ground. The survey I township 26 N. R. 1, E, was approved BOARD OF TRADE FOR. ELK The Miners, Business Men and Operators of Elk City District Held a Meeting Sunday and Organize for the Purpose of Advertising the Mineral Resources. The miners, business men and operators of Elk City District held and enthusiastic meeting Sunday, April 17, and organized a Board of Trade, the objects of which are set forth in the preamble which reads as follows: "The citizens of Elk City District, County of Idaho, State of Idaho, believing that our interests will be furthered by association, hereby organize ourselves for the purpose of advertising the merits of this district, facilitate examination of its resources and encour age capital to invest in its properties and aid in its development." The constitution limits-membership only to those "who are in terested in the development of Elk City district." The admission fee is two dollars, with a. monthly due of fifty cents. The officers consist of president, vice president, secretary, assistant secretary and a board of directors. The regular meeting days are the first Sunday of each month. Andrew Brader, manager of the Mam moth and Great Eastern, was elected president; G. V. Herrington, v i ce president; J. L. C. McCaffrey, secretary, and G. L. L. Baskett, assistant secretary. The following is the board of directors; Wil .. TT _ , T t , 7 T r • . T r r-. n n n ham Hogan, Frank Hye, G. \. Herrington, H. D. Poyneer, H. P. McCarthy, G.-L. L. Baskett, B. S. Cullen, N. B. Pettibone ot Stites, John Olçen and S. W. Smith. The officers were instructed to secure a suitable building for a mineraI displav,and headquarters for the board. This was prompt . ,, , , , , . -, . u u L' attended to Monday, quarters being secured in the old Bennett building and carpenters set to work constructing tables and shelt illg. When these are ready, collecting the ore for the display will immediately begin, provision is made for labeling each sample brought in. as well as listing the group of claims or claim the ore . „ , , » ,, , , ,, , ,, • -,_ 13 ^ ror y 1, ^. le by-laws of the board allow S a mem lei the pnv ege , of listing in a book kept for that purpose a certain numbci of claims free of charge; those not members will be charged fifty j cen t s per claim. Of course the number of claims will be limited in j As time passes, however, no doubt many of the by each case. laws will be remodeled and changes made wherever and whenever I necessary to fit changing conditions. , February 20, 1903, and survey of town I ship 25 N. R. 1, E., has been made but 1 not yet approved by your office. As appears fl . om tracing - submitted with I the record, the claims, with the excep- 1 don of the Coarse Gold and Morton lo | ! j cations, lie along the : w est bank of the Salmon river and while they do not eon f orm dle ij ncs 0 f the public survey as established, are nearly rectangular 1 j n form. "The Morton and Coarse Gold claims I are long and narrow locations including the bed of Crandall and Cow creeks, j respectively. A contour map submitted shows that the locations have been 1 made, with the exception of small areas at the ends of the North Star, Dipper and Morton claims, as to lie within an | altitude not exceeding 125 feet above Salmon river. The affidavits of appli-1 cant and of a U. S. mineral surveyor i are submitted in support of the appli cation and it would appear therefrom that the claims have been worked for ! their placer deposits since 1894; that the locations were made long prior to the township surveys and are so made as to cover and include the precipitous banks of the creeks which are valueless for mineral purposes. It is stated that there is no intention of monopolizing the water supply to the exclusion or in jury of the interests of others, and that should the department refuse to grant the survey as applied foi applicant would be deprived of ground where many expensive improvements have been placed by him in good faith. j "Upon consideration of the above showing made in connection with the rule announced by the department in the case of the Wood Placer Mining Company, on review. (32 L. D. 36 and 401) it is believed that the application should be granted. Your action in de nying same is accordingly hereby re-, versed, Quasi Contest 2557 declared closed, and you are authorized and di rected to issue the order for survey." T. H. Bartlett, of Grangeville, acted attorney for Mr. Crandall in the to in of of as above matter. The ELK G. M. & M. CO. The Property Vi-sited by a Mining News Representative. The Newsman, while in search of news, visited the Elk Gold M. & M. Companys properties on lower Red river Thursday of this week. He, was courteously received by J. A. McEach ran, the company's manager, and kind-1 ly shown around by him. While it was generally known in the district that the surface showing was remarkable fox both size and good appearance the re ports convey but a feeble impression compared with that of actual observa tion. The outcropping of this dyke at the point the work is being prosecuted at present will exceed 200 feet in width and rises mass after mass of huge out croppings from the creek to the apex of The character of the the mountain. ore is the same as obtains in a genera^ way in the other dykes in this district, especially the great Buffalo Queen and Friday, the Crooked River company's principal claims. The general charac ter of the ore is sulphide but a fair per centage is also free milling. There is no doubt that with the com pletion of the projected tunnel and drifts, the Elk Gold Mining,and Milling Company will have a property second to none in the district. On The Oregon Croup. Frank Corbus left of Friday's stage for Spokane on business connected with die Oregoh groüp on Summit Flat, which is under bond to a company rep resented by Mr. Corbus. As soon as dle roads permit a hoist and mill will be installed> The shaft is at present down gg f ee t, with three feet of very high grade ore in sight. The gentlemen compr xsing- the company are solid busi ness men of Spokane' and Kendrick, q^ey are Messrs. Herman, Frazer, Browîlj Anderson an d E. M. Corbus, all of Spokane> and Mr. Jacobs, the Ken dr ; ck banker, ( n ies contemplate WOl'k as SOOU as snow leaves has done much .to Hump Stock Quotations. The report that many compa- stimulate speculation in Hump properties, thinks the Spokes- man Review, and gives the fol- lowing quotations, among others: American 2c bid 2 l-2c asked. 3c " 3 l-4c Cracker jack 15c " 16c I Del Rio 5 l-4c " 5 3-4c Hamilton 3 3-4c " 4 l-2c 35 l-2c " j The feature of the week v as the bidding on Beatrice a Hump ' property of very recent promi- nence. Beatrice i i i i Jumbo 34c