North American Auction Company
Timed Auction

Last Chance Passed Lots Auction: October 28th, 2022

Mon, Oct 24, 2022 02:00AM EDT - Fri, Oct 28, 2022 03:00PM EDT
Lot 724

Granite Mountain Mining Claim Potosi, MT 1939

Estimate: $200 - $400

Bid Increments

Price Bid Increment
$0 $5
$50 $10
$100 $25
$500 $50
$1,000 $100
$2,000 $250
$5,000 $500
$10,000 $1,000
This lot includes a Mineral Plat Map of a Potosi, Montana Mining Claim, 1939, with handwritten additions presumably by another surveyor dated January 6, 1941. Titled, "Great Falls Land District PLAT of the claim of E. Roy Grigg known as the Granite Mountain No. 1, Granite Mountain No. 2, Granite Mountain No. 3, Washington, Lincoln, Grant, Roosevelt and Wilson Lodes In Potosi (Unorg.) Mining District, , Madison County, Montana. The map lists mining activity exploration to date including, "13 cuts, Two Tunnels, Three Shafts, One Stope, An Excavation and Common Improvements Consisting of Five Tunnels Value $17,818.00". Historical documents indicate this district and nearby districts yielded over $6 million, mainly gold but also appreciable amounts of silver, copper, and lead. This map is in amazingly good overall condition, age tanning, foxing noted, slight tears noted at top of sheet and fold creases. Measures 13.75"W x 19"L open, 7"W x 9"L folded.
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