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Summit Valley Mining District Triangulation Survey Maps [145755]

Currency:USD Category:Collectibles / Mining Start Price:400.00 USD Estimated At:800.00 - 2,000.00 USD
Summit Valley Mining District Triangulation Survey Maps  [145755]
SOLD
400.00USDto S***6+ buyer's premium (100.00)
This item SOLD at 2022 Feb 26 @ 09:26UTC-8 : PST/AKDT
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Large ledger, 14 x 22" x 3" thick with perhaps 300+/- maps of the Summit Valley, Oro Fino and perhaps other mining districts encompassed in approximately T2S, northward to T5N and Range 1W to about 12W, which covers basically everything in and around Butte. These are triangulation diagrams that we in the mining business use to locate various surveyed claims (patents, etc.) in use for title work of mining properties. As might be expected, there are thousands of surveyed lode claims as well as hundreds of placer claims. The data here appears to be just post-1900 and are early large-scale xerox copies, possibly used by the Anaconda Company. Only a few hand written notes are included here and there. This is an Important database that would take a lot of work to reproduce today.

Date:
Country (if not USA):
State: Montana
City: Butte
Provenance: Stuart Mackenzie Montana Ephemera Collection