East Portal, 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 East Portal quad
The East Portal quadrangle is a Forest Service FSTopo 7.5-minute map at 1:24,000 covering about 7.5 × 9.4 mi of Boulder and Gilpin counties, Colorado. It overlaps Arapaho and Roosevelt National Forests. The GeoPDF is 1.8 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
37 named features inside the East Portal — 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
- Arapaho Lakes · lake
- Betty Lake · lake
- Bob Lake · lake
- Clayton Lake · lake
- Corona Lake · lake
- Crater Lakes · lake
- Deadman Lake · lake
- Devils Thumb Lake · lake
- Diamond Lake · lake
- Forest Lakes · lake
- Heart Lake · lake
- Iceberg Lakes · lake
- Jasper Lake · lake
- Jenny Lake · lake
- King Lake · lake
- Mammoth Creek Reservoir · reservoir
- Pumphouse Lake · lake
- Rogers Pass Lake · lake
- Skyscraper Reservoir · reservoir
- Storm Lake · lake
- Upper Diamond Lake · lake
- Upper Storm Lake · lake
- Woodland Lake · lake
- Yankee Doodle Lake · lake
Gaps, arches and other landforms
- Devils Thumb · cliff
- Devils Thumb Park · flat
- Devils Thumb Pass · gap
- Riflesight Notch · gap
- Rogers Pass · gap
- Rollins Pass · gap
Elevations are the USGS 3DEP ground elevation at the named point, rounded; a summit's surveyed height can differ a little.
More maps of Arapaho and Roosevelt National Forests.
Maps nearby
More maps around here ›
East Portal, CO
Detailed map of terrain, trails and roads
USGS topo, 2022
Central City, CO
Old map for history, not navigation
USGS historical 15-minute topo (1905)
Central City, CO
Old map for history, not navigation
USGS historical 15-minute topo (1910)
Central City, CO
Old map for history, not navigation
USGS historical 15-minute topo (1912)
South Half Motor Vehicle Use Map (MVUM)
Forest roads and trails open to vehicles
Arapaho and Roosevelt National Forests & Pawnee National Grassland
Denver West 30x60 Land Ownership (BLM Surface Management)
Land Ownership Maps from BLM Data · Colorado
Version history
Version 1 · Nov 8, 2026 · 1.8 MB