US Topo Maps for Alaska
US Topo quadrangles are digital topographic maps produced by the National Geospatial Program of the U.S. Geological Survey (USGS). They are created in the familiar 7.5-minute quadrangle format similar to the legacy paper maps, with the addition of an aerial photo or satellite image as a visual base layer. Each map is delivered in PDF format with geospatial extensions (GeoPDF®) for free download and viewing on a computer or mobile device, including layers that can be controlled by the user and basic, on-screen geographic analysis.
Fairbanks D-2 SW, Alaska
Anchorage B-3 NW, Alaska
(Click either image to locate and download available Alaska US Topo Maps)
Availability: Download new Alaska US Topo Maps
US Topo maps are accessible for free download from The National Map Viewer
and for download and order from the USGS Store
. The maps will be available as they are produced and posted over the next few years. A 'quickstart
' user's quide is available for The National Map
Viewer with instructions on how to locate and download maps and/or data.
The US Topo program started in 2009 and has completed a first round of maps completely covering the conterminous Unites States. Starting in 2013, the National Geospatial Program began creating US Topo maps in Alaska, providing a comprehensive update to the 15-minute 1:63,360-scale printed maps produced nearly 50 years ago. The new digital maps will be created at 1:25,000 map scale, and will show greatly increased topographic detail when compared to the older maps. The map scale and data specifications were selected based on significant outreach to various map user groups in Alaska.
Over the next 6 to 8 years, over 11,000 US Topo maps will be created to cover all of Alaska at a 1:25,000 map scale. Approximately 400 maps will be created by October 2013, with an additional 700 maps expected by October 2014 (see graphic). Maps can only be created where satellite imagery and highly detailed elevation data exists. The USGS is coordinating with the State of Alaska and multiple Federal agencies to acquire these data through partnerships such as the Alaska Statewide Digital Mapping Initiative and the Alaska Mapping Executive Committee.
US Topo Alaska Plan of Work (click for larger version)
Each map is made from key layers of digital map data found in The National Map. Much of the Alaska digital map data is specifically tailored to the unique needs of the state. Data layers include imagery, transportation, geographic names, topographic contours, boundaries, hydrography, structures, and woodlands, plus additional layers such as the Public Land Survey System (PLSS) and United States National Grid (USNG). Efforts are underway through State and Federal partnerships (add link to Partnerships page) to acquire the satellite imagery and elevation data necessary to create US Topo maps.
Animation demonstrating the properties and features of an Alaska US Topo GeoPDF; Fairbanks, AK
This multi-year mapping initiative vastly improves the base topographic maps for the state as well as The National Map's Alaska digital map data to benefit high priority applications in safety, planning, research and resource management.