This collection of two separate geopackages contains the sample maps (i.e., sampling units) that were surveyed during the 2010 and 2015 Alaska Trumpeter Swan Surveys. The geopackages are named YYYY_AK_TRUS_Sample_Maps.gpkg, where YYYY = survey year. The sample maps are U.S. Geological Survey 1:63,360 scale quadrangle maps.