How often are USGS topographic maps updated?
Most USGS map products are produced out of central offices through the National Mapping Division of the USGS; there is no individual mapping office for each State. The National Mapping Division can be contacted by selecting “Mapping” at the top of the Utah District home page. Here in the Water Resources Division, the maps we produce are specific to the hydrologic projects that we are working on. Just like you, we depend upon the National Mapping Division for their most updated maps, which we use as base maps for our hydrologic information.
