Anacostia Watershed Society
Bladensburg, MD (301) 699-6204
Contact: Jim Connolly, jim@anacostiaws.org
http://www.anacostiaws.org
Conducts restoration projects, such as river clean ups and tree planting on the Anacostia River and its tributaries.

Audubon Naturalist Society
Chevy Chase, MD (301) 652-9188, ext. 30
Contact: volunteer@audubonnaturalist.org
http://www.audubonnaturalist.org
An environmental education and conservation organization serving residents of the DC metropolitan area. Seeks to increase environmental awareness and understanding for people of all ages.

Concern, Inc.
Washington, DC (202) 328-8160
Contact: Susan Boyd, concern@igc.org
http://www.sustainable.org
National non-profit environmental educational organization that focuses on sustainable communities and broadens public participation in environmental protection.

DC Department of Recreation and Parks: Volunteers in Action Program
Washington, DC (202) 282-0758
Contact: Gail Benjamin, gail.benjamin2@dc.gov
http://www.dpr.dc.gov
Provides recreational and educational programs and activities for citizens living and working in the DC area.

Department of Natural Resources: Tree-Mendous Maryland
Annapolis, Maryland (410) 260-8510
Contact: Terry Galloway, tgalloway@dnr.state.md.us
http://www.dnr.state.md.us/forests/treemendous
A forest service program helping Marylanders plant and care for trees and shrubs on public land for the health of the natural environmental, in particular the Chesapeake Bay. Volunteers participate in tree plantings.

Eco Recycling Center
College Park, MD (301) 405-0927
Contact: Bridget Bystry, bcbystry@wam.umd.edu
http://www.inform.umd.edu/ECO
Promotes awareness, activism and education as it applies to the community. ECO provides the College Park area with a recycling drop-off yard which is maintained by ECO volunteers and employees. Materials are sorted and transferred to a recycling vendor.

Environmental Conservation Organization (ECO): Recycling Center
UM Campus, MD (301) 405-0927
Contact: Bridget Bystry, bcbystry@wam.umd.edu
http://www.inform.umd.edu/ECO
Promotes awareness, activism, and education as it applies to the community. ECO provides the College Park area with a recycling drop-off yard, which is maintained by ECO volunteers and employees. Materials are sorted and transferred to a recycling vendor.

Environmentors Project
Washington, DC (202) 261-6484
Contact: Susan Carlson
Enables urban high school students to work one-on-one with scientists and environmental professionals to conduct environmental research
and community action projects. There are some paid summer positions.

Fairfax RELEAF
Fairfax, VA (703) 324-1409
Contact: Kay Fowler, trees@fairfaxreleaf.org
http://www.fairfaxreleaf.org
Plants and preserves trees and urban forests in Northern Virginia. Projects occur in spring, summer, and fall. Over 50 tree-planting sites and ecological restoration projects.

Greenbelt Recreation Department
Greenbelt, MD (301) 397-2200
Contact: Julie McHale, ycbo@ci.greenbelt.md.us
http://www.ci.greenbelt.md.us
Works with numerous community centers, indoor/outdoor pools, parks, and fitness centers. Provides activities for all individuals residing both within Greenbelt and outside the city.

H.B. Owens Science Center: Prince George's County Public School
Lanham, MD (301) 918-8750
Contact: Martin Tillett, mtillett@umd5.umd.edu
http://www.pgcps.org
Provides programming for the entire P.G. county school system. Enhances science programs that are taught in the regular school setting through a planetarium, nature trail, computer labs, and more.

Jane Goodall Institute
Silver Spring, MD (301) 565-0086
Contact: Tracey Donvito, gdonvito@janegoodall.org
http://www.janegoodall.org
Committed to wildlife research, conservation, and environmental education.

MD National Capital Park and Planning Commission: Clearwater Nature Center
Clinton, MD (301) 297-4575
Contact: Sandra Lyon, clearwater@pgparks.com
http://www.pgparks.com
Stimulates others to enjoy, respect, and appreciate nature through the use of the senses and involvement with nature.

Population Connection
Washington, DC (202) 332-2200
Contact: Jay Keller, activist@populationconnection.org
http://www.populationconnection.org
Works to mobilize broad public support for a sustainable balance of the earth's people, environment, and resources.

Red Wiggler Foundation
Clarksburg, MD (301) 916-4133
Contact: Mike Fenyvesi, info@redwiggler.org
http://www.RedWiggler.org
Provides horticulture therapy to people with developmental disabilities through gardening.

Seneca Creek State Park: Department of Natural Resources Public Lands
Gaithersburg, MD (301) 924-2127
Contact: Dan Yankie,
park-seneca-creek@dnr.state.md.us
http://www.DNR.state.md.us
Mission is to manage the natural, cultural, historical, and recreational resources to provide best use for the benefit of people.

Sierra Club
College Park, MD (301) 277-7111
Contact: Laurel Imlay, maryland.chapter@sierraclub.org
http://maryland.sierraclub.org
Washington, DC (202) 547-1141
Contact: dc-interships@sierraclub.org
http://www.sierraclub.org
Develops legislation concerning issues such as nature and the environment. Volunteers may assist with advocacy campaigns, public education, and issue research.