Archive Search Results
Showing
1 - 7
of 7
, query time: 0.01s
Format:
Image
Front: "Don single jacking, Glengarry mine"
MacDonald knight using a hammer and drilling steel to create holes in rock.
From the USDA Forest Service website:
"Single jacking involves an individual holding a drilling steel in one hand and hitting it with a hammer held in the other. The single jacks have 3- or 4-pound heads and 10-inch handles. The short handle helps you place blows accurately and resists breaking better than longer handles. Engineer's...
Format:
Image
Pete Mann using burros to pack ore out of the Glengarry Mine [standardized spelling from GNIS]. The Glengarry Mine (Holy Cross Mining District) is .76 mile from Holy Cross City and at an elevation of 11,414 ft. The mining season was short at this elevation.
Verso: "Pete Mann with Burro string packing ore from Glengary mine, Summer 1940, Missouri Pass Summit"