Bonanza, CO — USGS historical 15-minute topo (1959)
by USGS Historical Topo Maps (public domain) · Colorado, US
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Older edition. This is the 1959 edition from the U.S. Geological Survey. A newer one may have been published since; check the agency's page for current rules and routes before relying on it.

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Where this map covers
Named places on this map
34 named features inside the Bonanza, CO — USGS historical 15-minute topo (1959) sheet, from the USGS Geographic Names Information System. Each one links to every map that shows it.
Peaks and ridges
Lakes, springs and falls
- Dry Lake · lake
- Mosquito Lake · reservoir
- O'Haver Lake · reservoir
- Pass Creek Lake · lake
- Poncha Hot Springs · spring
- Silver Creek Lakes · lake
- Wicker Spring · spring
Gaps, arches and other landforms
- Antora Meadows · flat
- Devils Armchair · basin
- Elkhorn Peak · flat
- Marshall Pass · gap
- Murphys Hole · basin
- Poncha Pass · gap
- The Gate · gap
- Windy Point · cliff
Elevations are the USGS 3DEP ground elevation at the named point, rounded; a summit's surveyed height can differ a little.
More maps of Rio Grande National Forest, Pike and San Isabel National Forests and Colorado.
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Version history
Version 1 · Nov 4, 2026 · 5.1 MB