Big Ten Academic Alliance Geospatial Discovery Portal

Big Ten Academic Alliance Geoportal

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You searched for: Year 1993 Remove constraint Year: 1993 Time Period 1950-1999 Remove constraint Time Period: 1950-1999
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1.
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Archived Submerged Aquatic Vegetation - SAV 1993: Maryland

1993. This is a MD iMAP hosted service. Find more information on http://imap.maryland.gov. The Chesapeake Bay SAV was mapped from 1:24,000 black and whit...

2.
Bedrock geology of Waseca County, Minnesota, M-73, Plate 1

Bedrock geology of Waseca County, Minnesota, M-73, Plate 1

1993. Bloomgren, Bruce A. Interpretations of bedrock geology (distribution of rock at the land surface and beneath surface sediments), scale 1:62,500, Waseca County.

3.
Bedrock geology of Waseca County, Minnesota, M-73, Plate 2

Bedrock geology of Waseca County, Minnesota, M-73, Plate 2

1993. Bloomgren, Bruce A. Structure (recognizable features produced by deformation of rocks) maps of the St. Peter Sandstone, Prairie du Chien Group, and Jordan Sandstone; I...

4.
Bedrock geology of Waseca County, Minnesota, M-73, Plate 3

Bedrock geology of Waseca County, Minnesota, M-73, Plate 3

1993. Bloomgren, Bruce A. Cross sections and structure (recognizable features produced by deformation of rocks) map of the Mt. Simon Sandstone, extending into Le Sueur and R...

5.
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Boundary of Conneaut Lake: Pennsylvania

1993. Loree Speedy, Western Pennsylvania Conservancy. Boundary of Conneaut Lake, Crawford County, Pennsylvania. This polyline does not include the many docks that extend into the lake.

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Bridges: Prince George's County, Maryland, 1993

1993. The Maryland-National Capital Park & Planning Commission. Location of bridge's throughout Prince George's County, Maryland.

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Building Footprints: Prince George's County, Maryland, 1993

1993. The Maryland-National Capital Park & Planning Commission. Location of all buildings throughout Prince George's County, Maryland.

8.
Cape Chocolate: Antarctica

Cape Chocolate: Antarctica

1993. Projection: Lambert Conformal Conic Projection: Standard Parallels -76°40' and -79°20'; Series: USGS 1:50,000 Topographic Series.

9.
Cathedral Rocks: Antarctica

Cathedral Rocks: Antarctica

1993. Projection: Lambert Conformal Conic Projection: Standard Parallels -76°40' and -79°20'; Series: USGS 1:50,000 Topographic Series.

10.
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Contours, 5-foot: Prince George's County, Maryland, 1993

1993. ASI, Inc., The Maryland-National Capital Park & Planning Commission - Prince George's County. The layer represents all 5 Foor Contours for Prince George's County, Maryland.

11.
Deep Freeze Range: Antarctica

Deep Freeze Range: Antarctica

1993. Projection: Lambert Conformal Conic Projection; Series: USGS 1:1,000,000 Topographic Miscellaneous Series.

12.
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Digital Orthophoto Quarter Quadrangle images for Pennsylvania

1993. United States Geologic Survey (USGS) and Pennsylvania Bureau of Topographic and Geologic Survey. Orthophotos combine the image characteristics of a photograph with the geometric qualities of a map. The primary digital orthophotoquad (DOQ) is a ...

13.
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Elevation Data, Steep & Severe Slopes: Prince George's County, Maryland, 1993

1993. The Maryland-National Capital Park & Planning Commission. Steep & severe slopes for Prince George's County, Maryland.

14.
Geologic map of Archean bedrock, Soudan-Bigfork area, northern Minnesota, M-79

Geologic map of Archean bedrock, Soudan-Bigfork area, northern Minnesota, M-79

1993. Southwick, Dave L. Interpretations of bedrock geology (distribution of rock at the land surface and beneath surface sediments), Archean rocks, bedrock outcrop (rock e...

15.
Geologic map of Minnesota, bedrock geology, S-19

Geologic map of Minnesota, bedrock geology, S-19

1993. Morey, G.B. Interpretations of bedrock geology (distribution of rock at the land surface and beneath surface sediments) of Minnesota, scale 1:3,000,000.

16.
Geologic map of the Doyle Lake and Finland quadrangles, Lake County, Minnesota, M-72

Geologic map of the Doyle Lake and Finland quadrangles, Lake County, Minnesota, M-72

1993. Miller, James D., Jr., Green, John C., Boerboom, Terrence J., and Chandler, Val W. Interpretations of bedrock geology (distribution of rock at the land surface and beneath surface sediments) of the Doyle Lake and Finland quadrangl...

17.
Granite Knolls: Antarctica

Granite Knolls: Antarctica

1993. Projection: Lambert Conformal Conic Projection: Standard Parallels -76°40' and -79°20'; Series: USGS 1:50,000 Topographic Series.

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Hydrologic Structures: Prince George's County, Maryland, 1993

1993. The Maryland-National Capital Park & Planning Commission. Hydrologic structures for all of Prince George's County, Maryland.

19.
Knobhead: Antarctica

Knobhead: Antarctica

1993. Projection: Lambert Conformal Conic Projection: Standard Parallels -76°40' and -79°20'; Series: USGS 1:50,000 Topographic Series.

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Major Utility Transmission Lines: Prince George's County, Maryland, 1993

1993. The Maryland-National Capital Park & Planning Commission. Major transmission lines throughout Prince George's County, Maryland.