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USGS Quadrangles
quadrangle
Subtopics:
Arminto (3 items)
Ashton (1 items)
Bemidji (2 items)
Bethel (1 items)
Boston (1 items)
Crescent (1 items)
Death Valley (1 items)
Dillingham (1 items)
Elmira (1 items)
Fort Yukon (1 items)
Goodnews Bay (1 items)
Hartford (2 items)
Hawaii (4 items)
Holbrook (1 items)
Hoquiam (4 items)
Johnson City (1 items)
Key West Insert (1 items)
Knoxville (1 items)
Long Beach (1 items)
Mariposa (2 items)
Medford (1 items)
Monterey (2 items)
Nogales (1 items)
Oklahoma City (1 items)
Preston (2 items)
Providence (1 items)
Pueblo (1 items)
Sacramento (1 items)
Salem (1 items)
San Bernardino (1 items)
San Francisco (2 items)
San Luis Obispo (1 items)
Seattle (1 items)
Susanville (1 items)
Taylor Mts (1 items)
Traverse City (2 items)
Valdosta (3 items)
Vancouver (2 items)

Results 1 - 10 of 53 listed by similarity [list alphabetically]
Quadrangle indexes [More info]
GIS data files containing approximate boundaries of the various USGS quadrangles, with names and indexing codes associated with each quadrangle.
BRASS: Bedrock Regional Aquifer Systematics Study [More info]
Description of the project to publish new bedrock geologic maps in the United States to advance the understanding of the region's bedrock aquifers. Includes list of projects.
The Parkfield Experiment - capturing what happens in an earthquake [More info]
Fact sheet describing plans for a San Andreas Fault Observatory at Depth (SAFOD) by drilling into the fault to install instruments for long-term monitoring near the location of the magnitude 6 Parkfield earthquakes.
History and ecology of mangroves in the Dry Tortugas [More info]
Fact sheet on the historic and current conditions of mangroves of Dry Tortugas National Park, a cluster of islands and coral reefs west of Key West, Florida. Mangroves and nesting frigate bird colonies are at risk to destruction by hurricanes.
An interpretation of the 1977 Airborne Electromagnetic (AEM) survey, Fort Huachuca vicinity, Cochise County, Arizona [More info]
Complex report on the interpretation of aeromagnetic data to study hydrogeology of the San Pedro basin, Cochise County, Arizona determining geologic structure, basin fill and depth to water. Online version of a CD-ROM publication.
Priority ecosystem studies initiative [More info]
Description of the priority ecosystems studies initiative with links to projects in Chesapeake Bay, Greater Yellowstone, Mojave Desert, Platte River, Salton Sea, San Francisco, and south Florida.
Platte River Program, a USGS Place-Based Studies Program [More info]
Site for the Platte River Program in Nebraska an area that is a critical staging area for migratory waterbirds of the Central Flyway. Includes links to color-infrared aerial photos, 1938 historic aerial photos, and Cottonwood Ranch research site.
Coastal ocean modeling at the USGS Woods Hole Field Center [More info]
Fly-by and circulation movies, effluent concentration, tidal flushing, sea level, and temperature in Massachusetts Bay and Boston Harbor
Digital shorelines for Boston Harbor [More info]
Modified version of paper by F.T. Manheim and A.G. McIntire, Civil Engineering Practice, Vol. 13, No. 1, pp. 35-48 (1998). A new shoreline file has been created for Boston Harbor by digitizing and combining the most recent charts.
Boston Harbor ecosystems [More info]
This web site is an outgrowth of an agreement between the USGS and the New England Aquarium, designed to summarize and make available results of scientific research. It will also present educational material of interest to wide audiences.
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