Leicester, MA Quadrangle
- Historic USGS Maps of Leicester and the surrounding area.
- http://docs.unh.edu/nhtopos/Leicester7.5MA.htm

White Oak Land Conservation Society
- Land conservation society founded in 1978 to preserve land as open space. Includes holdings, membership information, list of events and maps.
- http://www.whiteoaktrust.org/

Wachusett Greenways
- A grass roots team of volunteers working to expand the network of trails linking communities. Includes trail maps, current projects and membership information.
- http://www.wachusettgreenways.org/

Natural Resources Conservation Service
- Contacts for the Holden Field Office.
- http://www.ma.nrcs.usda.gov/contact/employee_directory.html#holden