The Appalachian Trail Conference (ATC) is a volunteer-based, private, nonprofit organization dedicated to the preservation, management, and promotion of the Appalachian Trail as a primitive setting for outdoor recreation (on foot) and for learning.
NH GRANIT
The NH GRANIT Web Site provides access to New Hampshire’s statewide geographic information system. The mission of New Hampshire GIS is to promote the efficient use of New Hampshire’s diverse resources by utilizing geographically related information in an effective way and by providing geographic information and corresponding tools to citizens and organizations.
Nashua Regional Planning Commission data
Numerous data products and reports including census data and traffic counts http://www.nashuarpc.org/publications/index.htm