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Historical map overlays

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Sun azimuth: 315°   Sun altitude: 45°   Z factor: 1   Lidar opacity: 1
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Blackhawk — Gilpin County

Gold Mining Site CO • Gilpin County County
Description
In Blackhwak there are many rich area mines, mostly base metal and silver, with by-product of gold. The Gregory diggings were rich placers discovered in 1859. At Russel Gulch, area gravel deposits are productive placer deposits. There are many area lode mines, in early day production, $400 per day per man at $35 an ounce -wow -.
Historical Notes
Source: Tom Ashworth's Prospectors Cache (tomashworth.com / Mike Higbee / 49erMike). Author: Tom Ashworth. Original page: gilpin_co.shtml. State index: https://web.archive.org/web/20040830075749/http://www.tomashworth.com/goldloc.shtml Area: BLACKHAWK. Map coordinates are an approximate county centroid — not a precise claim site. In Blackhwak there are many rich area mines, mostly base metal and silver, with by-product of gold. The Gregory diggings were rich placers discovered in 1859. At Russel Gulch, area gravel deposits are productive placer deposits. There are many area lode mines, in early day production, $400 per day per man at $35 an ounce -wow -.
Status / Verification historical_site — Legendary or approximate

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