REI Co-op Guide to National Parks

Join us in building our newest project.

iOS App Store
Android App Store

To celebrate the National Park Service's Centennial, the REI community is co-creating the REI Co-op Guide to National Parks. Together we're building a crowd-sourced guide filled with our favorite trails and gems in the National Park System.

The REI Guide to National Parks is built from data on, an REI Co-op community.

Share Your Favorite Trails

Several parks are ready to explore, but others need more data, which is shared by people like you. The data is created on this website and added to the app every week. Below are a few ways in which you can share your amazing National Park adventures.

Trail Descriptions

We've drawn most trails on the map, but we need your help describing them. Adopt a trail to share with fellow hikers.


Gems are special places and experiences, from roadside overlooks to secret backcountry spots.


Share your best photos of trails, gems and scenery to inspire people to get out and enjoy our parks.

Featured Hikes

Featured Hikes are some of the best and most popular routes in a park. They often include a combination of trails.

GPS Tracks

Add a trail from scratch. Use the mobile app to record a Trail or Featured Hike to share on the site and app.

Pick a park you know from the list below and share your National Park experiences by adopting a trail today. Remember, you can always upload your content from the "Share Your Trails" link in the header of

Group code? Enter it here so we can reward your efforts. Contact us if you have any questions.

Available on iOS and Android

iOS App Store
Android App Store