See also:

• Sports: Adventure Racing  (252)
• Sports: Multi-Sports: Triathlon: Winter  (3)

Albany Running Exchange - - Trail running club based in Albany, New York. Includes summer trail run series, results, calendar, photos, and member news.

All American Trail Running Association (AATRA) - - Membership application and extensive collection of links and information on events, trails, equipment, and race results.

American Discovery Trail - - Learn about the first running trail that crosses the entire nation.

BC Trail Running - - Offers information on trail running in British Columbia, Canada. Includes articles, photos, and links to several trail series.

eHow to Choose Trails for Trail Running - - Tips and information about trail running. Requires free membership.

Gil's Athletic Club - - Trail running club based in Topsfield, Massachusetts, sponsoring several trail races (primarily ultras). In addition to race information, includes weekly runs, guide to area trails, and photos.

Irish Mountain Running Association - - Irish mountain running. Trails, races and links on the Island.

Mountainrunning.com - - Rocky Mountain trail guides with maps and descriptions. World mountain running trophy information on venues, maps, results. Guide to trail accommodations available.

New England Trail Runner - - Extensive listing of New England area trail racing and running information on the web. Includes race results posting and trail running club information.

Northern Arizona Trail Runner's Association - - Promotes trail running in Northern Arizona, in the United States. Contains a listing of upcoming races, related links, history of the organization, pictures, membership details, race summaries, and message board.

Peak Trail Runner - - A guide to trail running in the UK Peak District national park.

Perry Scanlon's Home Page - - Contains photos and links to trail and workout information near Palm Springs, California, as well as specific information for the Skyline Trail.

Redwood Trails - - Information on a series of trail runs in the Bay Area of California. Race distances range from 5k to the marathon.

Run Hayward Hills Trails - - Trails of Hayward, California. Great for running and riding ATB.

Shenipsit Striders - - Trail running club in Somers, Connecticut, sponsoring the Soapstone Mountain races as well as weekly training runs. Includes race information and results, photos, and links.

Team Gloucester - - Trail running club in Gloucester, Massachusetts. Cape Ann trail information and maps as well as an extensive trail race calendar for New York and New England.

Trail Runner Magazine Online - - Running, health, travel, and training, race results and race event calendars.

USTrailrunner - - Includes gear reviews, race calendar, online store, and discussion board.

Western Mass Athletic Club - - Trail running club in western Massachusetts. In addition to club news, includes information for several trail and snowshoe races as well as the Grand Tree Trail Race Series.