Dillon, CO — USGS historical 15-minute topo (1929)
by USGS Historical Topo Maps (public domain) · Colorado, US
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Older edition. This is the 1929 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
59 named features inside the Dillon, CO — USGS historical 15-minute topo (1929) sheet, from the USGS Geographic Names Information System. Each one links to every map that shows it.
Peaks and ridges
Lakes, springs and falls
- Bills Ranch Lake · lake
- Black Lake · reservoir
- Black Lake Number 2 · reservoir
- Blue River Arm · bay
- Blue River Ranch Lakes · lake
- Boulder Lake · lake
- Curtain Ponds · lake
- Deluge Lake · lake
- Dillon Bay · bay
- Dillon Reservoir · reservoir
- Frisco Bay · bay
- Giberson Bay · bay
- Gore Lake · lake
- Heaton Bay · bay
- Iron Springs · spring
- Lily Pad Lake · lake
- Lost Lake · lake
- Officers Gulch Pond · lake
- Old Dillon Reservoir · reservoir
- Rainbow Lake · lake
- Ruby Lake · lake
- Salmon Lake · lake
- Slate Lake · lake
- Snake River Arm · bay
and 4 more
Gaps, arches and other landforms
- Braddock Flats · flat
- Crown Point · cape
- Delaware Flats · flat
- Eccles Pass · gap
- Fishhook Island · island
- Ptarmigan Pass · gap
- Red Buffalo Pass · gap
- Sentinel Island · island
- Shrine Pass · gap
- Silver Dollar Island · island
- Uneva Pass · gap
- Vail Pass · gap
- Wheeler Flats · flat
- Windy Point · cape
Elevations are the USGS 3DEP ground elevation at the named point, rounded; a summit's surveyed height can differ a little.
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Version history
Version 1 · Nov 4, 2026 · 6.1 MB