The USGS National Map is a collection of free, nationally-consistent geographic datasets that describe the landscape of the United States and its territories.
More information can be found here: https://www.usgs.gov/tools/national-map-viewer
Web Soil Survey (WSS) provides soil data and information produced by the National Cooperative Soil Survey. It is operated by the USDA Natural Resources Conservation Service (NRCS) and provides access to the largest natural resource information system in the world.
USFWS-NWI produces and distributes maps and other geospatial data on American wetland and deepwater habitats, as well as monitor changes in these habitats through time. This information is available to the public through two primary datasets: the wetlands geospatial dataset and wetlands status and trends reports.