Maps
Fundamental Science Practices
USGS provides unbiased, objective, and impartial scientific information upon which our audiences, including resource managers, planners, and other entities, rely.
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
Geologic Maps
Map Releases
Map Releases
Topo Maps
Topo Maps
Volcanic Maps
Volcanic Maps
All Maps
All Maps
Filter Total Items: 9573
Small-scale map of flow field Small-scale map of flow field
This small-scale map shows Kīlauea’s active East Rift Zone lava flow in relation to the eastern part of the Island of Hawai‘i.
Bedrock geologic map of the Worcester South quadrangle, Worcester County, Massachusetts Bedrock geologic map of the Worcester South quadrangle, Worcester County, Massachusetts
The bedrock geology of the 7.5-minute Worcester South quadrangle, Massachusetts, consists of deformed Neoproterozoic to Paleozoic crystalline metamorphic and intrusive igneous rocks in three fault-bounded terranes (zones), including the Avalon, Nashoba, and Merrimack zones (Zen and others, 1983). This quadrangle spans the easternmost occurrence of Ganderian margin arc-related rocks...
Reconnaissance surficial geologic map of the Taylor Mountains quadrangle, southwestern Alaska Reconnaissance surficial geologic map of the Taylor Mountains quadrangle, southwestern Alaska
This map and accompanying digital files are the result of the interpretation of aerial photographs from the 1950s as well as more modern imagery. The area, long considered a part of Alaska that was largely not glaciated (see Karlstrom, 1964; Coulter and others, 1965; or Péwé, 1975), actually has a long history reflecting local and more distant glaciations. An unpublished photogeologic...
Geologic map of the Masters 7.5' quadrangle, Weld and Morgan Counties, Colorado Geologic map of the Masters 7.5' quadrangle, Weld and Morgan Counties, Colorado
The Masters 7.5' quadrangle is located along the South Platte River corridor on the semiarid plains of eastern Colorado and contains surficial deposits that record alluvial, eolian, and hillslope processes that have operated in concert with environmental changes from Pleistocene to present time. The South Platte River, originating high in the Colorado Front Range, has played a major role...
Large-scale map with thermal mosaic overlay Large-scale map with thermal mosaic overlay
This map overlays a georeferenced thermal image mosaic onto a map of the flow field to show the distribution of active and recently active breakouts.
Small-scale map of flow field Small-scale map of flow field
This small-scale map shows Kīlauea’s active East Rift Zone lava flow in relation to the eastern part of the Island of Hawai‘i.
Satellite image shows June 27th lava flow Satellite image shows June 27th lava flow
This satellite image was captured on Wednesday, September 2, by the Advanced Land Imager instrument onboard NASA's Earth Observing 1 satellite.
Map showing flow field changes Map showing flow field changes
This map shows recent changes to Kīlauea’s active East Rift Zone lava flow field.
Flood-inundation maps for Big Creek from the McGinnis Ferry Road bridge to the confluence of Hog Wallow Creek, Alpharetta and Roswell, Georgia Flood-inundation maps for Big Creek from the McGinnis Ferry Road bridge to the confluence of Hog Wallow Creek, Alpharetta and Roswell, Georgia
Digital flood-inundation maps for a 12.4-mile reach of Big Creek that extends from 260 feet above the McGinnis Ferry Road bridge to the U.S. Geological Survey (USGS) streamgage at Big Creek below Hog Wallow Creek at Roswell, Georgia (02335757), were developed by the USGS in cooperation with the cities of Alpharetta and Roswell, Georgia. The inundation maps, which can be accessed through...
Map showing flow field changes Map showing flow field changes
This map shows recent changes to Kīlauea’s active East Rift Zone lava flow field.
Small-scale map of flow field Small-scale map of flow field
This small-scale map shows Kīlauea’s active East Rift Zone lava flow in relation to the eastern part of the Island of Hawai‘i.
Geologic Map of Baranof Island, southeastern Alaska Geologic Map of Baranof Island, southeastern Alaska
This map updates the geology of Baranof Island based on fieldwork, petrographic analyses, paleontologic ages, and isotopic ages. These new data provide constraints on depositional and metamorphic ages of lithostratigraphic rock units and the timing of structures that separate them. Kinematic analyses and thermobarometric calculations provide insights on the regional tectonic processes...