Strava Global Heatmap
Where people run, ride and swim, as a glowing heatmap
Avalanche.org: map of avalanche forecasts for the United States. Here are 25 other maps that do a similar job, 15 of them completely free.
Where people run, ride and swim, as a glowing heatmap
Switzerland's federal map viewer with the famous Swiss topographic maps
Free topographic map of the world from OpenStreetMap and elevation data
A cycling map that shows bike lanes, surfaces and services
Detailed outdoor and city maps from Czechia, popular with hikers across Europe
Marked hiking, cycling and riding routes worldwide from OpenStreetMap
Classic worldwide cycling map with national cycle routes
Worldwide map of ski pistes, lifts and cross-country trails
Week-by-week forecast of autumn leaf colour across the US
Rock climbing routes and crags with community beta
Nautical charts and sonar depth maps for boaters, online
Free nautical chart with buoys, lights and harbours from OpenStreetMap
Find hiking, running and biking trails with reviews and photos
Where people run, ride and swim, as a glowing heatmap
Switzerland's federal map viewer with the famous Swiss topographic maps
Free topographic map of the world from OpenStreetMap and elevation data
A cycling map that shows bike lanes, surfaces and services
Detailed outdoor and city maps from Czechia, popular with hikers across Europe
Marked hiking, cycling and riding routes worldwide from OpenStreetMap
Backcountry map for planning with slope angle, topo and fire layers
Plan hikes and bike rides with routing that knows the surfaces
Millions of outdoor trails recorded and shared by users
The worldwide treasure hunt: millions of hidden caches on a map
Offline GPS maps for hiking, hunting and overlanding
Classic worldwide cycling map with national cycle routes
Worldwide map of ski pistes, lifts and cross-country trails
Ordnance Survey maps of Great Britain for walking and planning
3D mountain maps that identify every peak you can see
Week-by-week forecast of autumn leaf colour across the US
Rock climbing routes and crags with community beta
Nautical charts and sonar depth maps for boaters, online
Surf forecasts and live surf cams on a map
Free nautical chart with buoys, lights and harbours from OpenStreetMap
Trails, campgrounds and recreation sites in US national forests
New Zealand topographic maps online, from official LINZ data
Database and maps of the world's mountains and climbing lists
Worldwide climbing guide with crags, routes and ticks