Public Data

Just Say the Word, We Can Source the Data

We Source GIS Data

Sourcing Data

Map-N-Hike provides services to research and acquire publicly available data to assist you with your business needs. Organizations range from local, regional, state and federal government agencies to private and non-profit organizations.

Sourcing Public Data

New Hampshire State Wide Clearinghouse.

  • Imagery and Base Maps
  • Administrative and Political Boundaries
  • Agriculture and Farming
  • Biology and Ecology
  • Cultural, Society, and Demographic
  • Elevation and Derived Products
  • Environment and Conservation
  • Geological and Geophysical
  • Inland Water Resources
  • Location and Geodetic Network
  • Oceans and Coasts
  • Transportation Networks
  • Utilities and Communication

New Hampshire County Registries of Deeds

  • Grantor & Grantee Index
  • Survey Maps (Site Plans, Subdivisions, etc..)

Maine Office of GIS (MEGIS)

  • Maintenance of a public geospatial data portal, to make data easily accessible to the public
  • Coordination of state efforts with federal and local efforts, which in 2010 alone brought in $1.3M in federal funding for geospatial data
    Development and maintenance of geospatial architecture (databases, servers) to provide robust mapping capabilities to state agencies and public-facing web services
  • Maintenance of base data including town boundaries, hydrography, geographic names
  • Development of web-mapping applications for state agencies

Maine Registry of Deeds

  • Grantor & Grantee Index
  • Survey Maps (Site Plans, Subdivisions, etc..)

Free USGS 7.5 Minute Topographic Quadrangles

National Geographic is allowing everyone to easily download any USGS 7.5 minute topo map in the continental U.S. as a multi-page PDF that can be printed on letter size paper on any printer. These are the same topographic maps that were published by the U.S. Geological Survey for decades, with nice additional features from their much-loved, but discontinued TOPO! software product, including:

  • Page 1 is an index map showing each of the printable quarter-quad maps in their broader context
  • Pages 2-5 are the topo quarter-quads, sized and scaled to print on US-letter size paper
  • Hillshading has been added to help visualize the topography.


NOTE: Since the USGS stopped updating their printed topos decades ago, some of these maps do not accurately reflect the current landscape. For the most detailed and up-to-date maps of popular outdoors recreation areas, we recommend their Trails Illustrated maps

Managed by the largest commercial GIS organization in the world. Over 70,000 data sets from 4,100 organizations.

Esri Open Data Resource

The ArcGIS Living Atlas is a collection of geographic information from around the globe. It includes maps, apps, and data layers. Login required for subscriber and premium content.

Living Atlas


OpenStreetMap is built by a community of mappers that contribute and maintain data about roads, trails, cafés, railway stations, and much more, all over the world.

  • Natural and land use features like beaches, forests and farms
  • Places of interests like restaurants, hotels, police stations, churches and museums
  • Transportation features like bus stops, traffic signals and stop signs
  • Populated places like cities, towns, villages and localities
  • Buildings; digitized over 2 million features in New York alone


You are free to copy, distribute, transmit and adapt our data, as long as you credit OpenStreetMap and its contributors. If you alter or build upon our data, you may distribute the result only under the same licence. The full legal code explains your rights and responsibilities.

USGS Earth Explorer

  • Aerial Imagery
  • Advanced Very High Resolution Radiometer (AVHRR)
  • Committee on Earth Observation Satellites (CEOS)
  • Commercial Satellites (IKONOS-2 & Orbview-3)
  • Declassified Data
  • Digital Elevation
  • DLG’s
  • Digital Maps
  • USGS Earth Resources Observation and Science (EROS) Archive – Earth Observing One (EO-1)
  • USGS EROS Archive – Global Fiducials – Global Fiducials Library
  • USGS EROS Archive – Heat Capacity Mapping Mission (HCMM)
  • USGS EROS Archive – ISS SERVIR Environmental Research and Visualization System (ISERV)
  • USGS EROS Archive – Land Cover Products – Adopt a Pixel
  • USGS EROS Archive – Land Cover Products – Global Land Cover Characterization (GLCC)
  • USGS EROS Archive – Land Cover Products – Land Cover Trends Geotagged Photography
  • Landsat (Multiple Products)
  • USGS EROS Archive – Landsat Archives – Landsat 8 OLI (Operational Land Imager) and TIRS (Thermal Infrared Sensor)
  • Land Processes Distributed Active Archive Center (LP DAAC) (Multiple Data Sets)
  • USGS EROS Archive – Radar – IFSAR Orthorectified Radar Image (ORI) Alaska
  • USGS EROS Archive – Sentinel-2
  • USGS EROS Archive – Unmanned Aircraft Systems (UAS)
  •  USGS EROS Archive – Vegetation Monitoring – AVHRR Remote Sensing Phenology
  •  USGS EROS Archive – ISRO Resourcesat 1 and Resourcesat 2 – AwiFS

NASA’s Socioeconomic Data and Applications Center (SEDAC)

Retrieve global socioeconomic data from 15 different themes

  • Agriculture
  • Climate
  • Conservation
  • Governance
  • Hazards
  • Health
  • Infrastructure
  • Land Use
  • Marine and Coastal
  • Population
  • Poverty
  • Remote Sensing
  • Sustainability
  • Urban and Water


The mission of the OpenTopography Facility is to:

  • Democratize online access to high-resolution (meter to sub-meter scale), Earth science-oriented, topography data acquired with lidar and other technologies.
  • Harness cutting edge cyberinfrastructure to provide Web service-based data access, processing, and analysis capabilities that are scalable, extensible, and innovative.
  • Promote discovery of data and software tools through community populated metadata catalogs.
  • Partner with public domain data holders to leverage OpenTopography infrastructure for data discovery, hosting and processing.
  • Provide professional training and expert guidance in data management, processing, and analysis.
  • Foster interaction and knowledge exchange in the Earth science lidar user community.

Census Maps & Data

Find geographic data and products such as the TIGER/Line Shapefiles, KMLs, TIGERweb, cartographic boundary files, geographic relationship files, and reference and thematic maps

UNEP Environmental Data Explorer

Spatial and Non-Spatial Data

  • Freshwater
  • Population
  • Emissions
  • Climate
  • Health
  • GDP

NASA Earth Observations (NEO)

NEO provides climate and environmental changes as they occur on our home planet. You can browse and download imagery of satellite data from NASA’s constellation of Earth Observing System satellites. Over 50 different global datasets are represented with daily, weekly, and monthly snapshots, and images are available in a variety of formats including JPEG, PNG, Google Earth, and GeoTIFF.

Sentinel Satellite Data

The European Space Agency’s Sentinel satellite is now the highest spatial resolution available to the public for free.

Copernicus Open Access Hub

How to download data for free

Terra Populus

IPUMS Terra currently focuses on five kinds of data:

  • Census and survey microdata describing the characteristics of individuals and their families and households
  • Aggregate census and survey data, describing the characteristics of places, including aggregate population characteristics, land use, and land cover
  • Data derived from remote-sensing describing land cover and other environmental characteristics
  • Climate data describing temperature, precipitation, and other climate-related variables
  • Vector-based geographic information system (GIS) data delineating administrative and census unit boundaries

All five data types have an important temporal dimension; most of the data span multiple decades, and some sources reach back to the nineteenth century or earlier. By integrating the most comprehensive global data collections on land use and climate change with the major global collections of population data, IPUMS Terra constitutes a unique international reference collection for investigating transformative changes in the human-environment system.

FAO GeoNetwork

GeoNetwork opensource has been developed to connect spatial information communities and their data using a modern architecture, which is at the same time powerful and low cost, based on the principles of Free and Open Source Software (FOSS) and International and Open Standards for services and protocols (a.o. from ISO/TC211 and OGC).

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Publicly Available Data