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.
Vector Created with Sketch.

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.
Vector Created with Sketch.

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.

6.
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Cape Chocolate: Antarctica

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

7.
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Cathedral Rocks: Antarctica

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

8.
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Deep Freeze Range: Antarctica

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

9.
Raster

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 ...

10.
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...

11.
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.

12.
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...

13.
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Granite Knolls: Antarctica

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

14.
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Knobhead: Antarctica

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

15.
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McMurdo Dry Valleys: Antarctica

1993. Projection: Lambert Conformal Conic Projection - Standard Parallels -76°40' and -70°20'; Series: USGS Satellite Image Maps.

16.
Physiographic Divisions: Illinois, 2004

Physiographic Divisions: Illinois, 2004

1993. Illinois State Geological Survey. This is an ESRI feature class showing boundaries for physiographic divisions in Illinois. Data are originally from ISGS Report of Investigations 12...

17.
Purdue Campus: West Lafayette, Indiana, 1993

Purdue Campus: West Lafayette, Indiana, 1993

1993. The Purdue historical campus map collection was scanned and georeferenced by Purdue University Libraries. The physical maps were collected as Purdu...

18.
Quaternary geologic map of Chisago County, Minnesota, M-78

Quaternary geologic map of Chisago County, Minnesota, M-78

1993. Meyer, Gary N. Quaternary geology map showing interpretations of Quaternary (Pleistocene [glacial] and Holocene [post-glacial]) surficial geology (distribution an...

19.
Quaternary geologic map of Sherburne County, Minnesota, M-77

Quaternary geologic map of Sherburne County, Minnesota, M-77

1993. Meyer, Gary N. and Hobbs, Howard C. Quaternary geology map showing interpretations of Quaternary (Pleistocene [glacial] and Holocene [post-glacial]) surficial geology (distribution an...

20.
Surficial geologic map of parts of Koochiching, Itasca, and Beltrami Counties, north-central Minnesota, M-76

Surficial geologic map of parts of Koochiching, Itasca, and Beltrami Counties, north-central Minnesota, M-76

1993. Meyer, Gary N. Quaternary geology map showing interpretations of Quaternary (Pleistocene [glacial] and Holocene [post-glacial]) surficial geology (distribution an...