The Outdoors Club  
   Organization with chapters across the United States participates in hiking, camping, climbing, biking, kayaking, rafting, and skiing. Includes schedule, articles, pictures, discussion forum, and membership information.
   http://www.outdoorsclub.org

Appalachian Mountain Club  
   Members from Maine to Virginia participate in hiking, paddling, skiing, and other outdoor activities. Includes links to lodging destinations, local chapters, membership, conservation programs, and outdoor activities.
   http://www.outdoors.org/

Appalachian Mountain Club, Delaware Valley Chapter  
   Volunteers lead events including: hiking, canoeing and kayaking, biking, skiing, climbing, social events, and conservation and trail maintenance. (Pennsylvania, New Jersey, and Delaware)
   http://www.amcdv.org/

Appalachian Mountain Club, New York-North Jersey Chapter  
   Participates in backpacking, bicycling, camping, canoeing and kayaking, climbing, sailing, social events, and conservation efforts. Site includes schedule of upcoming events. Membership and contact information, plus trip reports, photos, and newsletter.(N
   http://www.amc-ny.org/

Mosaic Outdoor Clubs of America  
   A network of non-profit organizations dedicated to outdoor activities for Jewish adults, offering hiking, biking, camping, boating, rock climbing, backpacking, skiing, and diving. Site includes local chapter information, photos, organizational informatio
   http://www.mosaics.org/

The Adventurers Club  
   Organization is based in Chicago but has members elsewhere. Membership is open to men and women whose activities the club considers adventuresome. Site includes organizational information and a schedule of events.
   http://www.theadventurersclub.org

Adrenaline Junkies Adventure Club  
   Operates in New England and southern California. Activities include swimming, kayaking, skiing, skydiving, climbing, orienteering, caving, hiking, and surfing. Site includes membership details, media links, and schedule. (Boston, Massachusetts and San Di
   http://www.adrenalinejunky.com/

Leave No Trace  
   Encourages responsible, non-motorized outdoor activities with minimal impact on public recreational areas. The program provides education in outdoor skills and ethics.
   http://www.lnt.org/

Kansas Prairie Packers  
   An informal group for individuals and families in Topeka. Find calendar, newsletter, photos, contacts, and articles.
   http://www.prairiepackers.org

National Recreation and Park Association  
   Contains newsletter, events, awards, mission statement, training and education facilities, officers, and contacts. Located in Ashburn, Virginia.
   http://www.nrpa.org/

Wild Side Adventure Sports  
   Young professionals in the New England area participate in skiing, rafting, biking, hiking, and social events. Includes schedule and pictures.
   http://users.rcn.com/empressholly/WildSideAdventureSports/