These topographic index maps for Alaska state are provided by the U.S. Geological Survey (USGS) for map sheet identification. To locate the USGS topo quad in Alaska that you are trying to find, look at the index map of the appropriate map scale.
The index map above is for Alaska topo quads at 1:63,360 scale. It is zoomable, and you can find the name of the 1:63,360 scale quadrant (sometimes abbreviated as "63k") written horizontally across rectangular boxes that define the borders of the individual 63k map sheets. The names such as "Petersburg" actually label the 250k map sheets, whereas the smaller quadrangles containing labels such as "C-1" are the sub-names for the 63k map. Thus, a 63k map sheet might be identified as "Petersburg C-1".
Alaska is an exception in the USGS topo series in that it is covered by 63k maps instead of the usual 24k. 100k map sheets are also unavailable for Alaska.
Topographic maps of Alaska are available as digital image files at 1:250,000 and 1:63,360 scale on two data-DVD disks.
Below you can find the 1:250,000 index map for Alaska state. These topo maps give a general overview of an area and cover a large area: 1° latitude by 2° longitude. A list of all Alaska topo map sheets at 250k follows on the right.
Click the map below to view zoom.
Online preview of Alaska topo maps at 250k scale is currently unavailable, but can be purchased from YellowMaps as paper maps or digital maps on DVD. Please contact us to order.
Source of Alaska topographic index map images: U.S. Geological Survey (USGS); supplied by OMNI Resources.