Skip to content
  • State of Alaska
  • myAlaska
  • My Government
  • Resident
  • Business in Alaska
  • Visiting Alaska
  • State Employees
Department of Natural Resources, Division of Geological & Geophysical Surveys
  • Home
  • About Us
    • Director's Office
    • Alaska Statutes
    • Annual Reports
    • Employment
    • Staff Directory
  • Publications
    • Search
    • Statewide Maps
    • New Releases
    • Sales
    • Interactive Maps
    • Databases
  • Sections
    • Geologic Communications
      • Alaska Geologic Data Index (AGDI)
    • Volcanology
      • Alaska Volcano Observatory (AVO)
    • Mineral Resources
      • Alaska's Mineral Industry Reports
      • AKGeology.info
      • Rare Earth Elements
      • WebGeochem
    • Engineering Geology
      • Alaska Tidal Datum Portal
      • Climate and Cryosphere Hazards Program
      • Guide to Geologic Hazards in Alaska
      • MAPTEACH
    • Energy Resources
      • Gas Hydrates
  • STATEMAP
    • Program information
    • Geologic Mapping Advisory Board
    • STATEMAP Publications
  • Geophysics
    • Program Information
    • Geophysical Survey Publications
  • Geologic Materials Center
    • General Information
    • Inventory
    • Monthly Report
    • Hours and Location
    • Policy and Facilities
    • Staff
    • Data Reports
  • Contact Us
    • Frequently Asked Questions
    • Ask a Geologist
  • Links
    • AKGeology.info
    • Helpful Tools
    • Related Websites
  • Follow us on Twitter
  • Join our fan page on Facebook
  • DGGS News
  • Natural Resources
  • Geological & Geophysical Surveys
  • Links - Helpful Tools
main content

Links - Helpful Tools

  • Understanding geologic maps

    • GSA Geologic Time Scale
    • USGS booklet - Reading Topographic Maps
    • USGS/NPS website - What is a Geologic Map?
  • Using GIS data

    FreeGIS Project
    The FreeGIS Project provides software overview on free Geographic Information Systems
    Alaska Tidal Datum Portal
    For Alaska's coastal communities, an understanding and awareness of local tidal datums is critical to assessing vulnerability and planning responses to coastal geohazards. The Alaska Tidal Datum Portal is provided by DGGS staff to assist users with: answers to common questions about tidal datums, tidal datum calculations, and links to additional information and authoritative data sources.

The links on this page are provided as a courtesy to help our users find Alaskan geology-related information. Links are limited to publicly funded or non-profit organizations; administrative regulations prohibit links to commercial organizations.

Department of Natural Resources, Division of Geological & Geophysical Surveys (DGGS)
3354 College Road, Fairbanks, AK 99709
  • Phone: (907) 451-5000
  • Fax: (907) 451-5050
  • Contact DGGS
  • Privacy
  • Copyright
State of Alaska © 2013 Webmaster
  • State of Alaska
  • myAlaska
  • My Government
  • Resident
  • Business in Alaska
  • Visiting Alaska
  • State Employees