Zulch, Herman C.
1934

Maps of the Mossback Gold Mine near Oatman Arizona

Mossback Gold Mine Maps

DESCRIPTION: Scarce lot of six hand-colored blue-line mine maps of the Mossback Mine near the town of Oatman in Mohave County, Arizona. Five of the six maps show a distinctive tunnel, or level, of the mine (levels 100-400 (12" x 17") and level 700 (17" x 46")). The sixth and most interesting map is the "Cross Section Through Mossback Shaft" (18" x 26") which shows the Ritter Vein and the Mossback Vein, reported to be a rich source of gold ore. From a geological perspective the map projects the potential position of the Mossback Vein as it was shifted by the Mossback Fault.

According to the Arthur Lakes Library at the Colorado School of Mines the tunnel maps and cross-section map are scarce:
"Most mining maps show a mining district or region. . . Most of mine maps in our collection show only the location of the claims, not the tunnels. Very few maps show cross-sections of a mine." [1]

The Mossback Mine, at an altitude of 2,400 feet, was first discovered in 1863 by Garry Mining Company. Past operations took place as late as 1933 to 1935, but the mine is now closed. The Mossback vein extended nearly half a mile in length and was 23 feet in width at the surface, widening to 40 feet at the bottom. The ore contained up to $2,000 in gold per ton (100 ounces per ton). [2]

Traced by mining engineer Herman Zulch at Oatman, Arizona. Herman Charles Zulch graduated from the Colorado School of Mines in May 1908.

Sources include:
[1] https://libguides.mines.edu/maps/mining
[2] https://thediggings.com/mines/6530

CREATOR: Zulch, Herman C.

PUBLICATION DATE: 1934

GEOGRAPHIC AREA: United States

BODY OF WATER: N/A

CONDITION: Very good.  Clean without major issues. Minor age toning to two sheets.

COLORING: Hand coloring.

ENGRAVER: 

SIZE: 46 " x 17 "

ITEM PHYSICAL LOCATION: 62

PRICE: $550

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