The following is a list of over 125 mountain, ultra and trail running clubs located around the United States. You can find even more clubs on the Road Runners Club of American (RRCA) website.
New England (ME, NH, VT, MA, RI, CT)
Acidotic Racing (aR) – New Hampshire
CT Trailmixers – Connecticut
Central Mass Striders – Central Massachusetts
The Bimblers – New Haven, Connecticut
Gil’s Athletic Club – Topsfield, Massachusetts
Shenipsit Striders – North Central Connecticut
Trail Animals Running Club (TARC) – Boston, Massachusetts
Trail Monster Running – Maine
Western Mass Athletic Club – Western Massachusetts
Mid-Atlantic (DE, MD, NJ, NY, PA)
Allegheny Trail Runners – South Central, Pennsylvania
Eat and Run – New York, New York
Fast Tracks Running Club – Philadelphia, Pennsylvania
Finger Lakes Runners Club – Ithaca, New York
Frederick Area Trail Running Ultra Marathon Plodding Simpletons (FATRUMPS) – Frederick, Maryland
Greater Long Island Running Club – Long Island, New York (ATRA Club Member)
Lancaster Road Runners Club – Lancaster, Pennsylvania
Lehigh Valley Trail Chasers – Pennsylvania
NCR Trail Snails – Baltimore, Maryland
New Jersey Trail & Ultra Runners – Northern New Jersey
New York Trail & Ultrarunning – New York City, New York
North Park Trail Runners – Pittsburgh, Pennsylvania
Patapsco Trail Junkies – Patapsco, Maryland
Rise Up Runners – Easton, Maryland
The Animal Camp – Philadelphia Metro Area, Pennsylvania & New Jersey
TrailDawgs – Northern Delaware, Eastern Maryland
TrailWhippAss – New York City Metro area (NY/NJ)
Virginia Happy Trails Running Club – Maryland, Virginia, Washington, DC
Southeast (AL, AR, DC, GA, FL, MS, LA, KY, NC, SC, TN, VA, WV)
Atlanta Trail Runners – Atlanta, Georgia
Birmingham Ultra Trail Society (BUTS) – Birmingham, Alabama
Arkansas Ultra Runners Association – Arkansas
Charlottesville Area Trail Runners (CAT) – Charlottesville, Virginia
Douglas County Rogue Runners – Douglas County, Georgia
Florida Ultra Runners – Florida
Georgia Ultrarunning and Trailrunning Society (GUTS) – North Georgia
Huntsville Track Club – Huntsville, Alabama
Knoxville Track Club – Knoxville, Tennessee
Iron Mountain Trail Runners – Damascus, Virginia
Lowcountry Trail Runners – Charleston, South Carolina
Louisiana Ultra Runners – Louisiana
Mangum Track Club – Mangum & Ellerbe, North Carolina
North Carolina Mountain Trail Runners – North Carolina
Runner from Hell – South Carolina
Southern Pines Ultra Running Club – Central North Carolina
Trailheads – Chapel Hill & Carrboro, North Carolina
Virginia Happy Trails Running Club – Maryland, Virginia, Washington, DC
West Virginia Mountain Trail Runners – West Virginia
Yeti Trail Runners – Atlanta, Georgia
Midwest (IA, IL, IN, KS, MI, MN, MO, ND, NE, OH, SD, WI)
Chicago Ultrarunners (CHUG) – Chicago, Illinois
Flatlander Ultrarunners – Chicago, Illinois
Greater Omaha Area Trail Runnerz (GOATz) – Omaha, Nebraska
Kansas City Trail Nerds – Kansas City, Missouri
Kansas Ultrarunners’ Society (KUS) – Kansas
Kennekuk Trail Road Runners – Danville, Illinois
Lapham Peak Trail Runners – Milwaukee, Wisconsin
Lawrence Trailhawks – Lawrence, Kansas (ATRA Club Member)
Madison Trail Runners – Madison, Wisconsin
McHenry Ultrarunning Dude & Dudettes (MUDD) – Chicago, Illinois
Nature Trail Runners – Oswego, Illinois
New Leaf Ultra Runs – Chicago, Illinois
Northeast Ohio Trail Club – Northeastern Ohio
Ohio Ultra Trail Runners – Northeastern Ohio
Old Fort Ultrarunners Group – Fort Wayne, Indiana
St Louis Ultrarunners Group (SLUGs) – St. Louis, Missouri
Terrain Trail Runners – St. Louis, Missouri
Topeka Trail Runners – Topeka, Kansas
Upper Midwest Trail Runner – South Dakota to the Upper Peninsula of Michigan
Trail Enthusiasts for Burning River – Ohio
Mountain West (CO, ID, MT, NV, UT, WY)
Boulder Trail Runners – Boulder, Colorado
Casper Ultra and Trail Running Society – Central Wyoming
Denver Trail Runners – Denver, Colorado
Fort Collins Trail Runners – Fort Collins, Colorado
Helena Ultra Runners League – Helena, Montana
Incline Club – Colorado Springs, Colorado
Rocky Mountain Runners – Boulder, Colorado
Pikes Peak Road (and trail!) Runners – Colorado Springs, Colorado
Roxborough Running Club – Littleton, Colorado (ATRA Club Member)
San Juan Mountain Runners – San Juan Mountains, Southwestern Colorado
Saturday Morning Ultra Team (SMUT) – Las Vegas, Nevada
Silver State Striders – Northwestern Nevada
Southern Colorado Runners – Pueblo, Colorado
Sunrise Striders – Colorado Springs, Colorado
Tahoe Mountain Milers and the Sagebrush Stompers – Lake Tahoe & Carson City, Nevada
Team CRUD – Front Range, Colorado
Women Trail Runners of Colorado – Colorado
Pacific (AK, HI, WA, OR, CA)
Alaska Runners Club – Anchorage, Alaska (ATRA Corporate Member)
Cal Poly Trail Runners – San Luis Obispo, California
Central Oregon Running Klub (CORK) – Bend, Oregon
Coastside Running Club – Half Moon Bay & Pacifica, California
Donner Party Mountain Runners – Truckee, California
Folsom Trail Runners – Folsom, California
Greater Bellingham Running Club – Bellingham, Washington
Hawaiian Ultra Running Team (HURT) – Hawaii
Issaquah Alps Trail Running Club – Washington
Methow Valley Running Club – Methow Valley, Washington
Quicksilver Running Club – San Jose, California
Olympia Trail Runners – Olympia, Washington
San Diego Dirt Devils – San Diego, California
San Diego Ultra Running Friends – San Diego, California
Seattle Mountain Runners Group – Seattle, Washington
Seattle Running Club – Seattle, Washington
Skagit Ultra Runners – Skagit, Washington
SLO Trail Runners – San Luis Obispo, California
SoCalDayBreakers – Claremont, California
SoCal Trail Headz – Southern California
Stevens Creek Striders – Cupertino, California
Tamalpa Runners – Marin County, California
Team Red Lizard Running Club – Portland, Oregon
Trail Runners Club – Santa Monica, California
Trail Running Group – Oakland, California
Trail Runner Meetup Group – Chino Hills, California
Southwest (AZ, NM, TX, OK)
Alamo City Trail Runners – San Antonio, Texas
Albuquerque Road Runners – Albuquerque, New Mexico
Dallas Dirt Runners – Dallas, Texas
Flagstaff Ultrarunning Club – Flagstaff, Arizona
Hill Country Trail Runners – Hill Country, Texas
Houston Area Trail Runners – Houston, Texas
Houston Trail Runners EXtreme – Houston, Texas
Northern Arizona Trail Runners – Northern Arizona
North Texas Trail Runners – Dallas / Ft. Worth, Texas
Oklahoma Trail Runners Association – Oklahoma City, Oklahoma
San Antonio RoadRunners Off-RoadRunners – San Antonio, Texas
Heart of Texas Rockhoppers – San Antonio, Texas
Texas Trail Nerds – Houston, Texas
Tejas Trails – Austin, Texas (ATRA Corporate Member)
Trailhead Running – Austin, Texas (ATRA Club Member)
Tucson Trail Runners – Tucson, Arizona
Tulsa Area Trail & Ultra Runners (TATUR) – Tulsa, Oklahoma
Do know about a club that’s not on our list? Let us know!