Maps
Fundamental Science Practices
USGS provides unbiased, objective, and impartial scientific information upon which our audiences, including resource managers, planners, and other entities, rely.
Our programs produce accurate geologic maps and 3-D geologic frameworks that provide critical data for sustaining and improving the quality of life and economic vitality of the Nation. They also organize, maintain, and publish the geospatial baseline of the Nation's topography, natural landscape, built environment and more.
Geologic Maps
Map Releases
Topo Maps
Volcanic Maps
All Maps
Geologic map of the Blythe 7.5' quadrangle, La Paz County, Arizona and Riverside County, California
Potentiometric surface of groundwater-level altitudes near the planned Highway 270 bypass, east of Hot Springs, Arkansas, July–August 2017
Geologic map of the Ferncliff and Louisa quadrangles, Louisa, Fluvanna, and Goochland Counties, Virginia
Three-dimensional geologic map of the southern Carson Sink, Nevada, including the Fallon FORGE area
Historical land use and land cover for assessing the northern Colorado Front Range urban landscape
Map of the approximate inland extent of saltwater at the base of the Biscayne aquifer in Miami-Dade County, Florida, 2018
Geologic cross section A–A′ through the Appalachian basin from the southern margin of the Ontario Lowlands province, Genesee County, western New York, to the Valley and Ridge province, Lycoming County, north-central Pennsylvania
Potentiometric surface of the Mississippi River Valley alluvial aquifer, spring 2016
Geologic map of the Poncha Pass area, Chaffee, Fremont, and Saguache Counties, Colorado
Thermal map of Kīlauea lower East Rift Zone lava flow field
This preliminary thermal map shows relative surface temperatures across Kīlauea's 2018 lower East Rift Zone lava flow field.
Thermal map of Kīlauea summit
This thermal map was constructed from 1008 images collected by a thermal camera during a helicopter overflight on August 22, 2019.
Airborne radiometric maps of Mountain Pass, California
Geophysical investigations of Mountain Pass and vicinity were begun as part of an effort to study regional crustal structures as an aid to understanding the geologic framework and mineral resources of the eastern Mojave Desert. The study area encompasses Mountain Pass, host to one of the world’s largest rare earth element carbonatite deposits. The deposit is found along a north-northwest-trending,