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: 9574
Reconnaissance map showing thickness of volcanic ash deposits in the greater Hilo area, Hawaii Reconnaissance map showing thickness of volcanic ash deposits in the greater Hilo area, Hawaii
This study was undertaken to determine the thickness and distribution of volcanic ash deposits in the greater Hilo area, Hawaii, as a step toward evaluating their susceptibility to failure during earthquake shaking. On several occasions their instability has resulted in serious damage. For example, the 1868 earthquake (m=7+), following a prolonged rainy period, caused a debris flow of...
Seismicity map of the State of New Mexico Seismicity map of the State of New Mexico
The data shown on this map and listed in table 1 are for earthquakes that were originally included in a study of seismic risk in the United States (Algermissen, 1969). This data file has been recompiled and updated through 1980. Some revisions of epicenters and intensities in the original file have been made, and intensities have been assigned to earthquakes that previously had none...
Seismicity map of the State of Virginia Seismicity map of the State of Virginia
The data shown on this map and listed in table 1 are for earthquakes that were originally included in a study of seismic risk in the United States (Algermissen, 1969). This data file has been recompiled and updated through 1980. Some revisions of epicenters and intensities in the original file have been made, and intensities have been assigned to earthquakes that previouly had none...
Structural-stratigraphic framework and correlation of coal beds in the Tongue River and Sentinel Butte Members of the Fort Union Formation, Daglum 15-minute quadrangle, Billings, Stark, and Slope Counties, North Dakota Structural-stratigraphic framework and correlation of coal beds in the Tongue River and Sentinel Butte Members of the Fort Union Formation, Daglum 15-minute quadrangle, Billings, Stark, and Slope Counties, North Dakota
The Daglum quadrangle of southwestern North Dakota (see index map) is underlain by 11 lignite beds that exceed 5 ft in thickness within the Sentinel Butte and Tongue River Members of the Fort Union Formation. Six of these bed crop out within the quadrangle. This report illustrates the stratigraphic position, correlation, extent, and structural attitude of the lignite beds.