Installing High-Water Mark on a Building

Detailed Description
A USGS hydrologic technician points to a high-water mark he just installed on the side of a building in Barre, Vermont after flooding in July 2023. The mudline on the exterior of the building indicates how high the flood waters rose, and the high-water mark is a data reference USGS supplies to Federal Emergency Management Agency (FEMA).
Sources/Usage
Public Domain.