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Interactive Maps/GIS

GIS and mapping is increasingly moving to the web/cloud and many services are being developed to let you make your own maps and perform basic GIS operations. Web Maps/GIS range from simple online maps to complex interactive systems allowing users to layer, track, analyze, visualize, and export spatial data. The sites listed in this guide are a small sampling of what's available. Some sites are worldwide general systems, some cover specific geographic areas, while others are thematic.

Global Systems

  • ArcGIS Online
    Free and fee web-based product with basic GIS capabilities. Allows import of personal data in limited formats. Web apps to present data and projects. Check out their Map Viewer, Gallery, and Scene (3D viewer) features and services.​
  • Mapbox
    Free and fee-based web map services. Excels at vector map services, CSS styling of maps, and completely web-based non-technical online map making. Creative solutions for small to enterprise projects and operations.
  • GeoCommons
    A Community Site for Open Data and Maps. Requires registration.
  • IssueMap
    Upload tabular data and create a map.
  • Google Earth (requires download and installation of software)
    Beginners: check out tutorials on using Google Earth.
  • Google Maps and Google Maps App
  • OpenStreetMap
  • Bing Maps
  • Apple iOS Maps app


United States


  • WorldMap (Harvard University Center for Geographic Analysis)
    ​Searchable index of more than 2,700 maps, including projects large and small at various stages of development. Recommended:



  • Campus Plants (University of Hawaiʻi at Mānoa)
    The University of Hawaiʻiat Mānoa has an amazing collection of plants. Think of the university environment as a botanical garden. There are more than 6000 plants in over 700 species, some of which are represented by numerous distinct varieties. For more information, visit the Campus Arboretum website.


  • Honolulu Police Department Crime Map (HPD map overview/statistics)
    The crime-type categories include: Arson, Assault, Burglary, Disturbing the Peace, Drugs / Alcohol Violations, DUI, Fraud, Homicide, Motor Vehicle Theft, Robbery, Sex Crimes, Theft / Larceny, Vandalism, Vehicle Break-In / Theft, Weapons.


  • SocialExplorer 
    Social Explorer provides quick and easy access to current and historical census data and demographic information. The easy-to-use web interface lets users create maps and reports to illustrate, analyze, and understand demography and social change.

Flood Maps

  • FEMA Flood Map Service Center
    Current and historical flood maps for the United States. The FEMA Flood Map Service Center (MSC) is the official public source for flood hazard information produced in support of the National Flood Insurance Program (NFIP).
  • FEMA National Flood Hazard Layer (kmz layer for use with Google Earth)
    Download the latest "Stay Dry" or "FEMA NFHL" kmz files and open using Google Earth. The National Flood Hazard Layer (NFHL) dataset represents the current effective flood data for the country, where maps have been modernized. It is a compilation of effective Flood Insurance Rate Map (FIRM) databases and Letters of Map Change (LOMCs). The NFHL is updated as studies go effective.


  • Global Hazards Atlas (Pacific Disaster Center)
    Provides access to the PDC's DisasterAWAREsystem's trustworthy near real-time and historical data on natural hazards around the globe—including tropical cyclones, volcanic eruptions, earthquakes, tsunamis, floods, wildfires, and more.
  • Wildfires Map (Northwest United States)
    Real-time wildfires map. Data is updated every 30 minutes.


  • Hate Map (Southern Poverty Law Center)
    Hate group activities can include criminal acts, marches, rallies, speeches, meetings, leafleting or publishing. This list was compiled using hate group publications and websites, citizen and law enforcement reports, field sources and news reports. Groups that appear in the center of states represent statewide groups.


  • American Panorama (University of Richmond)
    American Panorama is an historical atlas of the United States for the twenty-first century. It combines cutting-edge research with innovative interactive mapping techniques, designed to appeal to anyone with an interest in American history or a love of maps. Includes: Mapping Inequality: Redlining in New Deal America, 1935-1940; The Forced Migration of Enslaved People, 1810-1860; The Overland Trails, 1840-1860; Foreign-Born Population, 1850-2010; and Canals, 1820-1860.


  • The Endangered Languages Project (Alliance for Linguistic Diversity)
    A worldwide collaboration to strengthen endangered languages. The project serves as an online resource for samples and research on endangered languages as well as a forum for advice and best practices. The catalog contains information on over 3400 languages.

Trails and Hiking

  • Nā Ala Hele Trail & Access Program
    Ala Hele is the State of Hawaiʻi Trail and Access Program. It was established in 1988 in response to public concern about the loss of public access to certain trails and the threat to historic trails from development pressure. Ala Hele has become increasingly engaged in trail management and regulatory issues due to both public and commercial recreational activities and emerging legal issues. Ala Hele is administered by the Division of Forestry and Wildlife – Department of Land and Natural Resources.