Overlays provide a wealth of additional information to help you plan your next adventure.
You can access overlays by following these steps:
Via desktop or laptop computer:
- Log into your account on https://www.alltrails.com
- Navigate to the map page of a trail you are interested in (the full page will be a map with the trail details on the left side of the page)
- In the bottom right corner you will see the 'Overlays' button (it is above 'Map layers')
- Click on the overlay you are interested in (it will display green) and it will be applied to the map
Via iPhone or Android app:
- Log into your account on alltrails.com
- Navigate to the trail details screen of a trail you are interested in
- Scroll down to the map section and click 'View Full Map'
- In the bottom right corner of the map screen you will see the 'Overlays' button (it is above 'Map layers')
- Select the overlay you are interested in (it will display green) and tap 'Done'
There are three map layers available to all members:
Photos - Displays geotagged photos on the map so you can see what to expect on the trail.
Waypoints - Displays geotagged waypoints across the trail map so you can find landmarks, attractions, junctions, trailheads, etc.
Nearby Trails - Drops map pins for nearby trailheads so you can see other trails in the area as well as other access points.
US Contours - Adds contour lines and slope angle shading to any map layer.
In addition, there are six real-time overlays that are exclusive to Pro members:
Heatmap - Visualizes all the user recordings tied to any trail. Easily find the most popular routes or less-traveled paths that other community members have taken.
Fire History - Displays recent fire activity, including year and incident name. Color coded by recency with red indicating the most recent and yellow being the oldest.
Weather - Displays real-time satellite and radar weather data over any map layer.
Air Quality - Displays a real-time air quality index over any map layer. Color coded with green indicating the cleanest air and red indicating the most polluted.
Pollen - Displays a daily forecast of tree pollen levels over any map layer in the U.S. and Europe. 10 different pollen species are included. The overlay is color coded with green indicating the lowest concentration of pollen and red indicating the highest concentration. Great for people with seasonal allergies!
Light Pollution - Displays a color coded overlay of excessive nighttime artificial light sources worldwide over any map layer. Areas displayed in red show the most light polluted areas while green shows the least polluted. This layer give you insight into whether or not you’ll be able to see stars at night!