Ironton, CO Forest Service Topo Map (FSTopo)
by Forest Service FSTopo Quads (public domain), US
A free GeoPDF for offline GPS in the Cartahaven app, with free updates. How it works offline

About the Ironton quad
The Ironton quadrangle is a Forest Service FSTopo 7.5-minute map at 1:24,000 covering about 8.4 × 10 mi of Ouray, San Juan and San Miguel counties, Colorado. It overlaps San Juan National Forest and Grand Mesa, Uncompahgre and Gunnison National Forests. The GeoPDF is 3.2 MB.
All Colorado Forest Service FSTopo maps · Colorado hunting units
What you get
- Your GPS position on the map. A blue dot on this official sheet shows where you are.
- Works with no signal. Download it once; the map and your GPS position keep working with no cell signal.
- Tracks, placemarks and photos. Record where you go, drop pins, and export GPX, KML or GeoJSON.
- Free updates. When a new edition is published here, it’s yours at no cost.
- 1Tap “Get this map”: it’s added to your free account.
- 2Open the Cartahaven app on your phone and sign in.
- 3Tap “Get my maps”. It’s on your phone, ready offline.
The app runs on iPhone, Android and in desktop browsers. Install it · How offline GPS works
Where this map covers
Named places on this map
62 named features inside the Ironton — Forest Service FSTopo 7.5-minute quad sheet, from the USGS Geographic Names Information System. Each one links to every map that shows it.
Peaks and ridges
Lakes, springs and falls
- Bear Creek Falls · falls
- Blue Lake · reservoir
- Bullion King Lake · lake
- Chattanooga Hot Spring · spring
- Crystal Lake · reservoir
- Gray Copper Falls · falls
- Ingram Falls · falls
- Ingram Lake · lake
- Lake Como · lake
- Lake Emma · lake
- Mud Lake · lake
- Porphyry Lake · lake
- Ptarmigan Lake · lake
- Rock Lake · lake
- Thorne Lake · lake
Gaps, arches and other landforms
- Alaska Basin · basin
- Champion Basin · basin
- East Basin · basin
- Grays Basin · basin
- Half Moon Basin · basin
- Imogene Basin · basin
- Imogene Pass · gap
- Ingram Basin · basin
- Ironton Park · flat
- McCarty Basin · basin
- Middle Basin · basin
- Mineral Basin · basin
- Minnehaha Basin · basin
- Mother Cline Slide · cliff
- Mud Lake Basin · basin
- Pierson Basin · basin
and 11 more
Elevations are the USGS 3DEP ground elevation at the named point, rounded; a summit's surveyed height can differ a little.
More maps of San Juan National Forest and Grand Mesa, Uncompahgre and Gunnison National Forests.
Maps nearby
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Ironton, CO
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USGS historical 15-minute topo (1902)

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USGS historical 15-minute topo (1955)

Silverton 30x60 Land Ownership (BLM Surface Management)
Land Ownership Maps from BLM Data · Colorado
Version history
Version 1 · Nov 8, 2026 · 3.2 MB