GIS Data
USGS is a primary source of geographic information system (GIS) data. Our data and information is presented in spatial and geographic formats, including The National Map, Earth Explorer, GloVIS, LandsatLook, and much more. Explore GIS Data Maps.
Filter Total Items: 9494
Sections showing biostratigraphy and correlation of Tertiary rocks penetrated in wells drilled on the southern Oregon continental margin
Geologic interpretation of seismic reflection profiles on the Continental Shelves of Oregon and Washington is measurably enhanced through the knowledge of Tertiary subsurface stratigraphy penetrated in 10 deep exploration wells drilled in the mid-1960's (Braislin and others, 1971; Snavely and others, 1977). These subsurface data make it possible to relate to the acoustic units differentiated on se
Seismic reflection study of Flathead Lake, Montana
A seismic reflection survey of Flathead Lake, Montana, was carried out in 1970 to study the geologic structure underlying the lake. Approximately 200 km of track lines were surveyed resulting in about 140 km of useable data (Fig. 1). A one cu. in. air gun was used as the energy source. Navigation was by a series of theodolite sitings of the boat from pairs of shore-based control points.
Seismicity map of the state of Texas
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 1981. Some revisions of epicenters and intensities in the original file have been made, and intensities have been assigned to earthquakes that previously had none assigned. Only
Shaded relief map of the Arcadia quadrangle of Mars
No abstract available.
Shaded relief map of the Chryse Planitia region of Mars
No abstract available.
Shaded relief map of the Eastern region of Mars
No abstract available.
Shaded relief map of the Ismenius Lacus Quadrangle of Mars
No abstract available.
Shaded relief map of the Mare Acidalium quadrangle of Mars
No abstract available.
Shaded relief map of the Phoenicis Lacus Northwest Quadrangle of Mars
No abstract available.
Shaded relief map of the Polar regions of Mars
No abstract available.
Shaded relief map of the western region of Mars
No abstract available.
Stratigraphic framework and coal correlation of the Upper Cretaceous Fruitland Formation, Bisti-Ah-Shi-Sle-Pah area, San Juan Basin, New Mexico
This report illustrates and describes the detailed stratigraphic framework and coal correlation of the Upper Cretaceous Fruitland Formation exposed in isolated badlands and along washes within a 20-mile outcrop belt in the Bisti-Ah-Shi-Sle-Pah area, southwestern San Juan Basin, Nex Mexico (see index). The stratigraphic framework showing the vertical and lateral distributions of rock types and the