Here are some additional resources to peruse through if you are looking for GIS data and maps in Alaska:

Alaska Geospatial Data Clearinghouse (USGS)

Alaska State Geospatial Data Clearinghouse

Alaska Mapped

Geographic Information Network of Alaska (GINA) Includes link to the Swath viewer

Alaska Department of Natural Resources

Alaska DNR Public Land Records Status plats, Alaska State Land Survey (ASLS) plats, Alaska State Cadastral Survey (ASCS) plats, US Survey plats, Mineral Survey plats