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211 records · Page 12Linked to original sources
USGS1980

Hurricane Frederic tidal floods of September 12-13, 1979, along the Gulf Coast, Bridgehead quadrangle, Alabama

Shown on a topographic map are floodmark elevations and approximate areas flooded by Hurricane Frederic tides of September 12-13, 1979, along the Mobile Causeway (U.S. Highway 90) from the Tensaw River to Spanish Fort, Alabama, and the eastern shore of Mobile Bay in the vicinity of Spanish Fort. Most buildings and business establishments along Mobile Causeway were completely destroyed, and the remaining buildings were severly damaged by flooding. Storm-tide frequency and records of annual maximum tides at Mobile, Alabama, since 1772, are presented. Offshore winds reached about 160 miles per hour. A wind-velocity of about 145 miles per hour was recorded near Dauphin Island, Alabama. (USGS)

Hydrologic Atlas↗
USGS1910

Johnstown folio, Pennsylvania

By reference to the key map (fig. 1) it will be seen that the Johnstown quadrangle is in southwest-central Pennsylvania. It lies mostly in Cambria County but covers also small parts of Somerset, Westrmoreland, and Indiana counties. Most of it is included in the valley of Conemaugh River and its tributaries Little Conemaugh River and Stony Creek, at the confluence of which is Johnstown and its suburbs. The northern part of the area is in the valleys of Blacklick Creek and it South Branch, along which are the small but prosperous coal-mining town Nanty Glo, Twin Rocks, Weber, Vintondale, and Wehrum.

Pennsylvania↗
USGS1980

Hurricane Frederic tidal floods of September 12-13, 1979, along the Gulf Coast, Grand Bay quadrangle, Alabama

Shown on a topographic map are floodmark elevations and approximate areas flooded by Hurricane Frederic tides of September 12-13, 1979, along coastal areas of Mississippi Sound from about one mile east of the Alabama-Mississippi State line westward to the Jackson County Airport in Mississippi. Storm-tide frequency and records of annual maximum tides at Mobile, Alabama, since 1772, are presented. Tide elevations in this region were about equal to those produced by Hurricane Betsy in September 1965. Offshore winds reached about 160 miles per hour. A wind-velocity of about 145 miles per hour was recorded near Dauphin Island, Alabama, a few miles southeast of Grand Bay. (USGS)

Hydrologic Atlas↗
USGS1975

Water resources of the Lake of the Woods watershed, north-central Minnesota

The Lake of the Woods watershed is an area of about 2,900 square miles (7,500 km), the northern limit of which is part of the boundary between the United States and Canada. Drainage is to Lake of the Woods, either directly or by the Rainy River. The watershed includes about 470 square miles (1,220 km2) of Lake of the Woods, one-third of the lake’s total area. The watershed, a part of the plain of glacial Lake Agassiz, is an area of low relief and slopes generally northward. Details of topography may be obtained from U.S. Geological Survey 7 1/2-minute quadrangle maps, as indexed. Surficial materials consist mainly of peat, lake-washed till, and beach deposits. Extensive wetlands typify much of the watershed. Bedrock is exposed in places near Lake of the Woods and the Rainy River. Except where cleared for cultivation, most of the watershed is covered by coniferous forests. Harvest of forest products, agriculture, and fishing are major economic activities. The 1970 population of the watershed was bout 6,600, concentrated chiefly along the Rainy River and the south shore of Lake of the Woods.

Minnesota↗
USGS1980

Hurricane Frederic tidal floods of September 12-13, 1979, along the Gulf Coast, West Pensacola quadrangle, Florida

Shown on the West Pensacola topographic map are floodmarks elevations left by Hurricane Frederic tides of September 12-13, 1979, along the eastern shore of Perdido Bay in the vicinity of West Pensacola, Florida. Most of the damage in this area was due to minor flooding and high winds. Still water elevations ranged from about 5 feet above National Geodetic Vertical Datum in the sheltered areas to about 7.5 feet in areas subject to wind setup. Storm-tide frequency and records of annual maximum tides at Mobile, Alabama, since 1772, are presented. Offshore winds reached about 160 miles per hour. A wind-velocity of about 145 miles per hour was recorded near Dauphin Island, Alabama. (USGS)

Hydrologic Atlas↗
USGS1980

Hurricane Frederic tidal floods of September 12-13, 1979, along the Gulf Coast, Hollingers Island-Theodore quadrangles, Alabama

Shown on a topographic map are floodmark elevations and approximate areas flooded by Hurricane Frederic tides of September 12-13, 1979, along the western shore of Mobile Bay from the southern part of Mobile, Alabama, to the South Fork of Deer River including the inland areas along Deer River and Dog River. Storm-tide frequency and records of annual maximum tides at Mobile, Alabama, since 1772, are presented. Offshore winds reached about 160 miles per hour. A wind-velocity of about 145 miles per hour was recorded near Dauphin Island, Alabama. Many homes and buildings were severly damaged by flooding, tidal waves, and high winds. Most fishing piers, sea walls, or other waterfront improvements were destroyed or heavily damaged.

Alabama↗
USGS1980

Hurricane Frederic tidal floods of September 12-13, 1979, along the Gulf Coast, Magnolia Springs quadrangle, Alabama

Shown on the Magnolia Springs topographic map are floodmark elevations and approximate areas flooded by Hurricane Frederic tides of September 12-13, 1979, along Weeks Bay and the northern shore of Bon Secour Bay, along the Fish River to Marlow and along the Magnolia River to Magnolia Springs, Alabama. Many homes and buildings that were constructed at or near the ground level were damaged by floodwater and tidal waves. Many fishing piers along the shores of Mobile Bay and Weeks Bay were damaged. Storm-tide frequency and records of annual maximum tides at Mobile, Ala., since 1772, are presented. Offshore winds reached about 160 miles per hour. A wind-velocity of about 145 miles per hour was recorded near Dauphin Island, Ala.

Alabama↗
USGS1980

Hurricane Frederic tidal floods of September 12-13, 1979, along the Gulf Coast, Daphne-Point Clear quadrangles, Alabama

Shown on a topographic map are floodmark elevations and approximate areas flooded by Hurricane Frederic tides of September 12-13, 1979, along the eastern shore of Mobile Bay generally from Daphne, Alabama, southward through Fairhope and Point Clear to Mullet Point, Alabama. Buildings and sewalls were damaged by flooding and tidal waves in the vicinity of Fairhope, Alabama. Most fishing piers along the shore were either destroyed or severely damaged. From Fairhope southward, many homes and other buildings, including the Grand Hotel complex at Great Point Clear, were severely damaged. Storm-tide frequency and records of annual maximum tides at Mobile, Alabama, since 1772, are presented. Offshore winds reached about 160 miles per hour. A wind-velocity of about 145 miles per hour was recorded near Dauphin Island, Alabama.

Alabama↗
USGS1980

Hurricane Frederic tidal floods of September 12-13, 1979, along the Gulf Coast, Gulf Shores quadrangle, Alabama

Shown on the Gulf Shores topographic map are floodmark elevations and approximate areas flooded by Hurricane Frederic tides of September 12-13, 1979, along the shores of the Gulf of Mexico, Oyster Bay, and the Bon Secour River, in Alabama. Most beachfront homes in the Gulf Shores area and most homes fronting on Little Lagoon in western Gulf Shores were either destroyed or heavily damaged. All beachfront motels were severly damaged. Damage to homes and other buildings in the Oyster Bay-Bon Secour area was not as great. Storm-tide frequency and records of annual maximum tides at Mobile, Ala., since 1772, are presented. Offshore winds reached about 160 miles per hour. A wind-velocity of about 145 miles per hour was recorded near Dauphin Island, Ala. (USGS)

Hydrologic Atlas↗
USGS1980

Hurricane Frederic tidal floods of September 12-13, 1979, along the Gulf Coast, Orange Beach quadrangle, Alabama

Shown on the Orange Beach topographic map are floodmark elevations and approximate areas flooded by Hurricane Frederic tides of September 12-13, 1979, along the shores of Wolf Bay, Perdido Bay, and Bayou St. John and adjacent areas in the vicinity of Orange Beach, Ala., and along the beaches exposed to the Gulf of Mexico, from Romar Beach, Ala., eastward to Perdido Key, in Florida. Damage from wind and tidal waves was widespread. The greatest damage occurred along Perdido Key in Alabama and Florida where many homes were destroyed and the highway was washed out in several places. Storm-tide frequency and records of annual maximum tides at Mobile, Ala., since 1772, are presented. Offshore winds reached about 160 miles per hour. A wind velocity of about 145 miles per hour was recorded near Dauphin Island, Ala.

Alabama↗
USGS1980

Hurricane Frederic tidal floods of September 12-13, 1979, along the Gulf Coast, Pine Beach, St. Andrews Bay, and Fort Morgan quadrangles, Alabama

Shown on a topographic map are floodmark elevations and approximate areas flooded by Hurricane Frederic tides of September 12-13, 1979, along the shores of St. Andrews Bay, Mobile Bay, and Bon Secour Bay from Fort Morgan eastward to about four miles east of Gasque, Ala. The storm tide went completely across the land between the beach and Mobile Bay throughout much of the area. Most homes on the beach side of Alabama State Highway 180 were completely destroyed, and the highway was washed out in several places. Damage to homes and other structures on the bay side was not as great. Storm-tide frequency and records of annual maximum tides at Mobile, Ala., since 1772, are presented. Offshore winds reached about 160 miles per hour. A wind-velocity of about 145 miles per hour was recorded near Dauphin Island, Ala.

Alabama↗
USGS2012

Quaternary geologic map of the Glasgow 1° x 2° quadrangle, Montana

The Glasgow quadrangle encompasses approximately 16,084 km 2 (6,210 mi 2 ). The northern boundary is the Montana/Saskatchewan (U.S./Canada) boundary. The quadrangle is in the Northern Plains physiographic province and it includes the Boundary Plateau, Peerless Plateau, and Larb Hills. The primary river is the Milk River. The map units are surficial deposits and materials, not landforms. Deposits that comprise some constructional landforms (for example, ground-moraine deposits, end-moraine deposits, and stagnation-moraine deposits, all composed of till) are distinguished for purposes of reconstruction of glacial history. Surficial deposits and materials are assigned to 23 map units on the basis of genesis, age, lithology or composition, texture or particle size, and other physical, chemical, and engineering characteristics. It is not a map of soils that are recognized in pedology or agronomy. Rather, it is a generalized map of soils recognized in engineering geology, or of substrata or parent materials in which pedologic or agronomic soils are formed. Glaciotectonic (ice-thrust) structures and deposits are mapped separately, represented by a symbol. The surficial deposits are glacial, ice-contact, glaciofluvial, alluvial, lacustrine, eolian, colluvial, and mass-movement deposits. Residuum, a surficial material, also is mapped. Till of late Wisconsin age is represented by three map units. Till of Illinoian age is also represented locally but is widespread in the subsurface. This map was prepared to serve as a database for compilation of a Quaternary geologic map of the United States and Canada (scale 1:1,000,000). Letter symbols for the map units are those used for the same units in the Quaternary Geologic Atlas of the United States map series.

Montana↗
USGS1914

San Francisco folio, California, Tamalpais, San Francisco, Concord, San Mateo, and Haywards quadrangles

The five sheets of the San Francisco folio the Tamalpais, Ban Francisco, Concord, Ban Mateo, and Haywards sheets map a territory lying between latitude 37° 30' and 38° and longitude 122° and 122° 45'. Large parts of four of these sheets cover the waters of the Bay of San Francisco or of the adjacent Pacific Ocean. (See fig. 1.) Within the area mapped are the cities of San Francisco, Oakland, Berkeley, Alameda, Ban Rafael, and San Mateo, and many smaller towns and villages. These cities, which have a population aggregating about 750,000, together form the largest and most important center of commercial and industrial activity on the west coast of the United States. The natural advantages afforded by a great harbor, where the railways from the east meet the ships from all ports of the world, have determined the site of a flourishing cosmopolitan, commercial city on the shores of San Francisco Bay. The bay is encircled by hilly and mountainous country diversified by fertile valley lands and divides the territory mapped into two rather contrasted parts, the western part being again divided by the Golden Gate. It will therefore be convenient to sketch the geographic features under four headings (1) the area east of San Francisco Bay; (2) the San Francisco Peninsula; (3) the Marin Peninsula; (4) San Francisco Bay. (See fig. 2.)

California↗