Arnold Rim Trail
Arnold, California
11.9 km1,808 ftgain3h 10m
ModerateOut & Back
Arrow Canyon
Moapa, Nevada
9.8 km1,240 ftgain2h 8m
ModerateOut & Back
Arrowhead Marsh Trail [CLOSED]
Oakland, California
6.0 km190 ftgain1h 15m
EasyOut & Back
Arrowhead Point and Cholla Loop
Glendale, Arizona
7.4 km1,125 ftgain2h
ModerateLoop
Arrowhead Point Loop
Glendale, Arizona
3.7 km574 ftgain1h
ModerateLoop
Arrowhead Recreation Park
Claremont, New Hampshire
3.7 km820 ftgain1h 6m
ModerateLoop
Arrowhead State Park South Loop
Canadian, Oklahoma
14.6 km1,260 ftgain3h 25m
ModerateLoop
Arrowhead State Park Trails 3,1,2
Canadian, Oklahoma
10.6 km889 ftgain2h 26m
ModerateLoop
Arroyo Hike and Bike Trail
Harlingen, Texas
6.0 km322 ftgain1h 17m
ModerateOut & Back
Arroyo Pescadero and Deer Loop Trail
Whittier, California
4.2 km515 ftgain1h 1m
EasyLoop
Arroyo Pescadero to Workman Hill and Worsham Canyon [CLOSED]
Whittier, California
14.5 km2,464 ftgain3h 48m
ModerateLoop
Arroyo Seco, West Mesa Fire Road, Monument Trail Loop [CLOSED]
Descanso, California
10.8 km1,637 ftgain2h 50m
ModerateLoop
Arroyo Tapiado Mud Caves
Julian, California
5.3 km712 ftgain1h 20m
EasyOut & Back
Artist's Point, Lily Pad Lake, and Clear Lake Loop [CLOSED]
Yellowstone National Park, Wyoming
5.3 km600 ftgain1h 16m
EasyLoop
Artist's Rock, Sunset Rock, and Newman's Ledge via Mary's Glen Trail
Tannersville, New York
7.4 km1,273 ftgain1h 59m
ModerateLoop
Artpark Trail
Lewiston, New York
3.9 km610 ftgain57m
EasyOut & Back
Asbury Woods Loop
Erie, Pennsylvania
4.0 km266 ftgain54m
EasyLoop
Ashby Gap and Old Appalachian Trail Loop
Paris, Virginia
10.6 km1,526 ftgain2h 50m
ModerateLoop
Ashland Reservoir Trail
Ashland, Massachusetts
5.2 km384 ftgain1h 7m
EasyLoop
Ashley Reservoir Trail
Holyoke, Massachusetts
5.3 km292 ftgain1h 8m
EasyLoop
Ashville Pond via Canonchet Trail
Hopkinton, Rhode Island
13.2 km1,637 ftgain3h 6m
ModerateOut & Back
Ashworth Park to Greenwood Park Singletrack
Des Moines, Iowa
4.3 km571 ftgain1h
ModerateLoop
Aspen Draw, Aspen and Marshall Gulch Trail
Mount Lemmon, Arizona
6.8 km1,142 ftgain1h 56m
ModeratePoint to Point
Aspen Ridge Trail [CLOSED]
Moose, Wyoming
9.2 km1,010 ftgain2h 17m
ModerateLoop