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New Hampshire Department of Environmental Services


Welcome to the New Hampshire Department of Environmental Services’ gateway to GIS (geographic) data. Easy access to quality geographic data and mapping tools is supported by the efforts of NHDES staff and the NHDES GIS Team.

Get GIS Data
GIS data is available for viewing and download in the new OneStop Data Mapper, developed and hosted by NHDES and NH GRANIT. Please click here for a list of GIS data available. Additional data may be available by contacting NHDES GIS at

View GIS Maps
The NHDES OneStop Data Mapper displays OneStop data in a single, easy-to-use mapping tool.

      NHDES OneStop Data Mapper      

Additional NHDES GIS data can be viewed in program-specific interactive maps.
NHDES ArcGIS Online Maps

Beach Advisories
Large Groundwater Withdrawal Permit Monitoring

Related GIS Links
NH GRANIT – Hosts New Hampshire GIS data and interactive maps.
NH Coastal Viewer – A map showing resources and hazards in New Hampshire’s coastal watershed.
Aquatic Restoration Mapper User Guide Adobe Acrobat Reader Symbol
OneStop Data Mapper Intro Video

OneStop Data Mapper User Guide Adobe Acrobat Reader Symbol
OneStop Data Mapper FAQs Adobe Acrobat Reader Symbol
OneStop Data Mapper Tools Quick List Adobe Acrobat Reader Symbol
Accessing and Printing Alteration of Terrain Screening Layers Adobe Acrobat Reader Symbol
Troubleshooting the GIS Online Maps Adobe Acrobat Reader Symbol

For GIS assistance, please email or call (603) 271-2972. 



Adobe Acrobat Reader Symbol Adobe Acrobat Reader format. Download a free reader from Adobe.

NH Department of Environmental Services | 29 Hazen Drive | PO Box 95 | Concord, NH 03302-0095
(603) 271-3503 | TDD Access: Relay NH 1-800-735-2964 | Hours: M-F, 8am-4pm

copyright 2017. State of New Hampshire