McKee-Beshers WMA
- State wildlife management area located on River Road in Western Montgomery County. Regulations, special areas, user's guide and site management practices.
- http://www.dnr.state.md.us/publiclands/central/mb.asp

Dierssen WMA
- State wildlife management area along the C&O Canal. Regulations and site management practices.
- http://www.dnr.state.md.us/publiclands/central/dierssen.asp

Friends of Sligo Creek
- Organization committed to improve the water quality, natural habitat, and ecological well-being of the Sligo Creek watershed. Overview of committees and accomplishments, articles, and newsletters.
- http://www.fosc.org/

Montgomery County Sierra Club
- Bylaws, summary of local development plans, events, current issues and newsletter.
- http://maryland.sierraclub.org/montgomery/

Discovery Creek Children's Museum of Washington
- Where history, nature, and the arts come to life for children and adults to explore. Innovative programming, seasonal nature camps, and outdoor nature experiences including rock-climbing, canoeing, fishing, and hiking. Located in Washington, DC and Glen E
- http://www.discoverycreek.org/