For links to localities in this county listing sites concerned with the local natural environment as well as scientific institutions and companies, and for similar sites concerned with multiple localities in this county or with the county as a whole.
A volunteer organization dedicated to the preservation of cultural sites, structures and environmental landscapes including civil war heritage sites.
Dedicated to the protection and restoration of natural resources which impact the watershed area in Northern Frederick County, Maryland. Profile, projects and news.
Free encyclopedia with history and geography of the mountain ridge.
Profile and geography from the free encyclopedia.
Thanks to DMOZ, which built a great web directory for nearly two decades and freely shared it with the web. About us