Acorn Creek Trail [CLOSED]
Pilot Hill, California
7.1 km948 ftgain1h 50m
ModerateOut & Back
Acorn Hammock Trail
Winter Haven, Florida
5.5 km384 ftgain1h 9m
ModerateLoop
Adam Run Trail
Akron, Ohio
5.3 km518 ftgain1h 15m
ModerateLoop
Adam's Cabin Trail
Layton, Utah
9.3 km3,337 ftgain3h 24m
DifficultOut & Back
Aden Crater Trail
Anthony, New Mexico
3.1 km279 ftgain44m
ModerateLoop
Adena Loop Trail
Bethel, Ohio
4.2 km292 ftgain54m
ModerateLoop
Adobe Falls Road Loop
San Diego, California
3.9 km322 ftgain55m
EasyLoop
Adobe Loop
Chino Hills, California
3.1 km322 ftgain47m
ModerateLoop
Adobe Loop Trail [CLOSED]
Murrieta, California
7.9 km551 ftgain1h 48m
EasyLoop
Aerie Loop
Sedona, Arizona
8.0 km728 ftgain1h 54m
ModerateLoop
Aga Ridge Trail to Bow Canyon Trail Loop
Big Bear Lake, California
3.5 km541 ftgain1h
ModerateOut & Back
Agate House Trail
Holbrook, Arizona
3.1 km151 ftgain40m
EasyOut & Back
Agate Lake Trail
La Grange, Missouri
5.5 km213 ftgain1h 9m
EasyLoop
Agua Caliente Loop
Tucson, Arizona
9.7 km1,667 ftgain2h 41m
ModerateLoop
Agua Caliente Trail
Milpitas, California
3.5 km2,556 ftgain3h 41m
ModerateLoop
Agua Caliente, Sierra Caliente and Monument Peak
Milpitas, California
10.0 km2,218 ftgain2h 57m
ModerateLoop
Agua Sarca Trail
Placitas, New Mexico
8.7 km2,841 ftgain3h 9m
DifficultOut & Back
Ah-shi-sle-pah Trail
Nageezi, New Mexico
4.5 km256 ftgain1h 2m
EasyLoop
Ahtanum Ridge Loop
Yakima, Washington
4.0 km955 ftgain1h 17m
ModerateLoop
Ahwingna and Native Oak Loop Trail
Whittier, California
7.1 km1,368 ftgain2h 3m
ModerateLoop
Al Foster Trail
Eureka, Missouri
13.8 km758 ftgain2h 56m
EasyLoop
Al Merrill Loop Trail
North Woodstock, New Hampshire
7.2 km1,010 ftgain1h 56m
ModerateLoop
Al Quaal Trail
Ishpeming, Michigan
8.0 km758 ftgain1h 56m
DifficultLoop
Alafia Horseback Loop [CLOSED]
Lithia, Florida
11.4 km600 ftgain2h 27m
ModerateLoop