Communities

Denver area Audubon society running the Kingery Nature Center at Chatfield State Park, with bird walks, classes and conservation programs.

Littleton

The oldest continuously running bike club in metro Denver, volunteer-led, with group rides most days at several paces and social events.

Denver

A large social cruiser bicycle gathering that hosts themed community night rides throughout the streets and parks of Denver.

Denver

Volunteer birding club for metro Denver with frequent field trips, programs, a quarterly journal and the Dinosaur Ridge Hawk Watch.

Denver

Large Denver Meetup group for weekly partner climbing at Movement gyms; rope climbers need to have passed the gym's belay test.

Denver

Free, informal trail running group: Thursday 6:15 pm runs at a different Front Range trailhead each week, Sunday morning runs, and a relaxed Tuesday run at Deer Creek.

Denver

Trout Unlimited chapter caring for the Denver South Platte River: restoration projects, river clean-up series, Trout in the Classroom and the CarpSlam tournament.

Denver

Land trust offering free guided hikes, bird walks and nature events on its Central Oregon preserves.

Bend, OR

Contra Costa club for casual social bike rides with friends.

Walnut Creek, CA

Women's mountain bike club in the Charlotte area.

Charlotte

Eugene mountain bike club with group rides, trail stewardship and events.

Eugene, OR

Spokane Valley conservancy protecting the Dishman Hills, with hikes and volunteer trail days.

Spokane, WA · not in an area yet

Volunteer San Francisco running club with low-key Sunday races and free training runs.

San Francisco, CA

Truckee trail running club with Tuesday social runs, Thursday hill workouts, bakery and pub runs, and races around Donner Summit and Tahoe.

Truckee

Land trust protecting Door County preserves, offering mostly free guided hikes, workshops and volunteer days.

Sturgeon Bay, WI · not in an area yet

Group developing a safe bicycle and pedestrian trail network connecting Door County communities.

Sturgeon Bay, WI · not in an area yet

Mountain bike club in Piney Green, in eastern North Carolina.

Piney Green

Volunteer group offering free walk-up kayaking on the Hudson in Manhattan.

New York, NY · not in an area yet

Local climbing advocacy group caring for Duluth crags and organizing climber stewardship events.

Duluth, MN

Cross-country ski club running casual Monday evening group skis, adult programs and trail work on Duluth trails.

Duluth, MN

Nonprofit running club with weekly group runs and local trail and road races.

Durango, CO

Nonprofit that builds and maintains Durango's trail network and organizes volunteer trail work.

Durango, CO

Durango road and gravel cycling club, being revived with memberships for 2027.

Durango, CO

Jacksonville Audubon chapter with field trips and bird walks across Northeast Florida.

Jacksonville, FL

Road cycling club in Greenville.

Greenville

Central Oregon birding group (formerly East Cascades Audubon) with field trips and bird walks.

Bend, OR

Local bird conservation group, formerly Eastern Sierra Audubon, leading free bird walks open to all levels around Bishop.

Bishop, CA · not in an area yet

Land trust in Bishop offering workshops, guided walks and volunteer cleanups across the Eastern Sierra.

Bishop, CA · not in an area yet

Hampton Roads mountain bike group that builds trails like Marshview Park and leads group rides.

Virginia Beach, VA

Volunteer group building and maintaining trails in Ogden Valley for biking, running and hiking.

Ogden UT

Nonprofit trail association in Elkin, in the foothills.

Elkin

Volunteer club that builds and grooms the Hidden Valley trails for skiing and mountain biking and runs community ski and ride events.

Ely, MN

Conservancy for Boston's Emerald Necklace parks with guided walks, Second Saturday volunteer days and park events.

Boston, MA

Durham nonprofit protecting land along the Eno River, with volunteer stewardship workdays, guided hikes, education programs and the Festival for the Eno.

Durham

Ketchum nonprofit offering environmental education, youth programs and community outdoor events.

Ketchum, ID

Community for Hispanic and Latine climbers with regular meetups at The Spot Boulder and The Spot Denver.

Denver

North Shore land trust offering guided hikes, nature walks and volunteer stewardship days on its reservations.

Essex, MA

North Shore trail group that maintains trails in Essex County and hosts trail work days, group rides and runs.

Topsfield, MA

Women's riding community within a regional mountain bike alliance in the Seattle area.

Seattle, Washington

Washington mountain bike alliance with local chapters that build and maintain trails through work parties and run group rides, classes and camps.

Seattle

Wenatchee chapter building trails from Leavenworth to Chelan, with weekly rides, a summer ride series and trail work.

Wenatchee, WA · not in an area yet

Spokane chapter of Washington's mountain bike alliance, with group rides, skills clinics and trail work.

Spokane, WA · not in an area yet

Evergreen-area club with weekly road, gravel and mountain bike rides April to October; non-members can join two rides with a signed waiver.

Evergreen

Exeter running club with weekly group runs from Town Hall, including a newbie run.

Exeter, NH · not in an area yet

Women's adventure Meetup in Boise organizing hikes and trips.

Boise, ID

Folsom Auburn Trail Riders Action Coalition, a mountain bike group building and maintaining local trails.

Folsom CA

Volunteer trail group in Fayette County that designs, builds and maintains trails, including the Wolf Creek singletrack near Fayetteville, with public work days.

Fayetteville, WV

Nonprofit that builds, maintains and advocates for multi-use trails in Chittenden County, with volunteer trail days.

Williston, VT

Ithaca-based land trust that opens nature preserves to the public and hosts guided walks and volunteer days.

Ithaca, NY · not in an area yet

Ithaca running club with group runs, trail races and a public events calendar.

Ithaca, NY · not in an area yet