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American Bird Conservancy (ABC) is a 501(c)(3), not-for-profit organization whose mission is to conserve native birds and their habitats throughout the Americas.

The American Forest Foundation works on-the-ground with families, teachers, and elected officials to promote stewardship and protect our nation's forest heritage.

The mission of American Farmland Trust is to save the land that sustains us by protecting farmland, promoting sound farming practices and keeping farmers on the land.

The mission of the American Littoral Society is to promote the study and conservation of marine life and habitat, protect the coast from harm, and empower others to do the same.

As the national voice for hikers, American Hiking Society helps preserve and protect the hiking trails and natural areas that hikers cherish and seek for exploration, exercise and education.

Founded in 1922, the AHS is among the oldest and most prestigious horticultural organizations in the United States. Our mission is to share the critical role of plants, gardens, and green spaces while helping to create healthy, livable communities and a sustainable planet. AHS fulfills its mission through educational programming, The American Gardener magazine, Great American Gardeners Awards, the AHS Garden Network, National Children & Youth Garden Symposium, Travel Study Program, and exemplary gardens at our national headquarters, River Farm. AHS work is national in scope.

The American Battlefield Trust is dedicated to preserving America's hallowed battlegrounds and educating the public about what happened there and why it matters today. The nonprofit organization has protected thousands of acres of battlefield land associated with the Revolutionary War, War of 1812, and Civil War. Learn more at http://www.battlefields.org.

American Conservation Experience (ACE) is a non-profit organization dedicated to providing rewarding environmental service opportunities that harness the idealism and energy of a volunteer labor force to help restore America’s public lands. ACE is grounded in the philosophy that cooperative labor on meaningful conservation projects fosters cross-cultural understanding and operates on the belief that challenging volunteer service unites people of all backgrounds in common cause.

Our mission is to create the largest nature reserve in the contiguous United States, a refuge for people and wildlife preserved forever as part of America’s heritage.

We provide knowledge and inspiration, conservation and advocacy, and logistical support for the climbing community.