About this map:

This is a general map of soils of northern Guam. The source of the geospatial data is the Soil Survey of the Territory of Guam (1985), conducted by the USDA Soil Conservation Service in cooperation with Guam Department of Commerce and University of Guam (UOG). General soil categories on the map are based loosely on the 1985 Simply Soil map by the USDA Soil Conservation Service (now NRCS).