While "GPO Maps" can refer to two distinct things, it most commonly refers to in Windows administration or, less commonly, physical cartographic resources from the Government Publishing Office (GPO) . 1. Windows Administration: GPO Drive Mapping
You can find these in Federal Depository Libraries across the country. They often include specialized data like agricultural soil maps, military terrain, and historical census tracts.
You can choose to Create , Replace , Update , or Delete mappings depending on whether you want to establish a new drive or overwrite an existing one.
These are almost exclusively paper-only documents produced by various federal agencies like the USGS or the Census Bureau.