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
Halemaʻumaʻu Overflow Map
Recent Lava Lake overflows within Kīlauea's Halemaʻumaʻu crater.
Uranium concentrations in groundwater, northeastern Washington
Map of Flow Field
Recent changes to Kīlauea’s East Rift Zone lava flow field.
Satellite image shows location of breakouts on flow field
Image shows that breakouts continue in several areas on the flow field.
Geologic map of the Weldona 7.5' quadrangle, Morgan County, Colorado
Geologic map of the Lower Valley quadrangle, Caribou County, Idaho
Geologic map of the Nepenthes Planum Region, Mars
Map of Flow Field
Recent changes to Kīlauea’s East Rift Zone lava flow field.
Delineation of the hydrogeologic framework of the Big Sioux aquifer near Sioux Falls, South Dakota, using airborne electromagnetic data
Map of Flow Field
Recent changes to Kīlauea’s East Rift Zone lava flow field.
Map of Flow Field
Recent changes to Kīlauea’s East Rift Zone lava flow field.
February 15, 2018—Why are HVO scientists talking so much about Mauna Loa?
Mauna Loa, Earth's largest active volcano, has erupted 33 times since 1843, producing the lava flows shown in black.