The National Map’s Structures Tint dataset represents manmade structures using broad-area tints rather than defining the exact shape of individual buildings. The Structures Tint data was provided by Oak Ridge National Labs and the Federal Emergency Management Agency.
This dataset was introduced in 2021 and is designed for use at the 1:24,000 scale (the standard scale for USGS topographic maps) or smaller. While improvements to spatial accuracy are ongoing, use at larger scales is not advised.
In the future, Structures Tint data will be downloadable through The National Map Download Client, available as its own map service, and included as a data layer on US Topo maps.