Big Ten Academic Alliance Geospatial Discovery Portal

Big Ten Academic Alliance Geoportal

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You searched for: Year 1998 Remove constraint Year: 1998 Time Period 1950-1999 Remove constraint Time Period: 1950-1999
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1.
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104 State Water Plan Watersheds: Pennsylvania

1998. Environmental Resources Research Institute. Digitized boundaries of 104 major watersheds defined in the Pennsylvania state water plan. The State Water Plan, originally developed in the 1970s,...

2.
1:250k Digital Raster Graphic - Collars Removed: Minnesota

1:250k Digital Raster Graphic - Collars Removed: Minnesota

1998. U.S. Geological Survey and Minnesota DNR. A digital raster graphic (DRG) is a scanned image of an U.S. Geological Survey (USGS) standard series topographic map, including all map collar inf...

3.
Aeromagnetic map of Minnesota, north-central region - Angle Inlet and Oak Island quadrangles

Aeromagnetic map of Minnesota, north-central region - Angle Inlet and Oak Island quadrangles

1998. Chandler, Val W. and Lively, R.S. Total magnetic intensity anomaly, contour, scale 1:100,000.Interpretation of magnetic data collected from airborne surveys, the map contours (lines...

4.
Aeromagnetic map of Minnesota, north-central region--Baudette quadrangle

Aeromagnetic map of Minnesota, north-central region--Baudette quadrangle

1998. Chandler, Val W. and Lively, R.S. Total magnetic intensity anomaly, contour, scale 1:100,000.Interpretation of magnetic data collected from airborne surveys, the map contours (lines...

5.
Aeromagnetic map of Minnesota, north-central region--Bigfork quadrangle

Aeromagnetic map of Minnesota, north-central region--Bigfork quadrangle

1998. Chandler, Val W. and Lively, R.S. Total magnetic intensity anomaly, contour, scale 1:100,000.Interpretation of magnetic data collected from airborne surveys, the map contours (lines...

6.
Aeromagnetic map of Minnesota, north-central region--Blackduck quadrangle

Aeromagnetic map of Minnesota, north-central region--Blackduck quadrangle

1998. Chandler, Val W. and Lively, R.S. Total magnetic intensity anomaly, contour, scale 1:100,000.Interpretation of magnetic data collected from airborne surveys, the map contours (lines...

7.
Aeromagnetic map of Minnesota, north-central region--Fosston quadrangle

Aeromagnetic map of Minnesota, north-central region--Fosston quadrangle

1998. Chandler, Val W. and Lively, R.S. Total magnetic intensity anomaly, contour, scale 1:100,000.Interpretation of magnetic data collected from airborne surveys, the map contours (lines...

8.
Aeromagnetic map of Minnesota, north-central region--Grygla quadrangle

Aeromagnetic map of Minnesota, north-central region--Grygla quadrangle

1998. Chandler, Val W. and Lively, R.S. Total magnetic intensity anomaly, contour, scale 1:100,000.Interpretation of magnetic data collected from airborne surveys, the map contours (lines...

9.
Aeromagnetic map of Minnesota, north-central region--Little Fork and International Falls quadrangles

Aeromagnetic map of Minnesota, north-central region--Little Fork and International Falls quadrangles

1998. Chandler, Val W. and Lively, R.S. Total magnetic intensity anomaly, contour, scale 1:100,000.Interpretation of magnetic data collected from airborne surveys, the map contours (lines...

10.
Aeromagnetic map of Minnesota, north-central region--Roseau quadrangle

Aeromagnetic map of Minnesota, north-central region--Roseau quadrangle

1998. Chandler, Val W. and Lively, R.S. Total magnetic intensity anomaly, contour, scale 1:100,000.Interpretation of magnetic data collected from airborne surveys, the map contours (lines...

11.
Aeromagnetic map of Minnesota, north-central region--Upper Red Lake quadrangle

Aeromagnetic map of Minnesota, north-central region--Upper Red Lake quadrangle

1998. Chandler, Val W. and Lively, R.S. Total magnetic intensity anomaly, contour, scale 1:100,000.Interpretation of magnetic data collected from airborne surveys, the map contours (lines...

12.
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Annual Average Daily Traffic (AADT) Turning Traffic: Iowa, 1998

1998. Iowa DOT GIS Services. Iowa turning traffic data (AADT) for intersections on the primary, secondary and municipal roadway systems for 1998. The state is divided into 4 qu...

13.
Archived Submerged Aquatic Vegetation - SAV 1998: Maryland

Archived Submerged Aquatic Vegetation - SAV 1998: Maryland

1998. Maryland iMap. 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...

14.
Bedrock geologic map of the Midway area, St Louis County, Minnesota, M-86

Bedrock geologic map of the Midway area, St Louis County, Minnesota, M-86

1998. Jirsa, Mark A. Interpretations of bedrock geology (distribution of rock at the land surface and beneath surface sediments) of the Midway area, Virginia Horn, Mesa...

15.
Bedrock geologic map of Virginia Horn, Mesabi Iron Range, St Louis County, Minnesota, M-85

Bedrock geologic map of Virginia Horn, Mesabi Iron Range, St Louis County, Minnesota, M-85

1998. Jirsa, Mark A., Boerboom, Terrence J., and Morey, G.B. Interpretations of bedrock geology (distribution of rock at the land surface and beneath surface sediments) of the Virginia Horn area, Mesabi Iron ...

16.
Bicycle map, City of Bloomington /prepared by the Bloomington Bicycle & Pedestrian Safety Commission.

Bicycle map, City of Bloomington /prepared by the Bloomington Bicycle & Pedestrian Safety Commission.

1998. Bloomington Bicycle & Pedestrian Safety Commission (Bloomington, Ind.). Fall 1998--Panel.; Includes list of agencies to contact for further information and area bicycle shops.; On verso: Downtown Bloomington bicycle map...

17.
C-11 Geologic atlas of Mower County, Minnesota [Part A]

C-11 Geologic atlas of Mower County, Minnesota [Part A]

1998. Mossler, J.H. 6 pls. Scale 1:100,000. Pl. 1, data-base; pl. 2, bedrock geology; pl. 3, surficial geology; pl. 4, depth to the pre-Cretaceous bedrock surface and ...

18.
C-12 Geologic atlas of Goodhue County, Minnesota [Part A]

C-12 Geologic atlas of Goodhue County, Minnesota [Part A]

1998. Setterholm, D.R. 6 pls. Scale 1:100,000. Pl. 1, data-base; pl. 2, bedrock geology; pl. 3, surficial geology and thickness of Quaternary sediments; pl. 4, Quaternary...

19.
Digital Orthophoto Quadrangle (DOQ) Data: Illinois, 1998 - 2001

Digital Orthophoto Quadrangle (DOQ) Data: Illinois, 1998 - 2001

1998-2001. U.S. Geological Survey. This is a collection of tile-by-tile NAPP-III DOQs (1998-2001) images in MrSID format for the state of Illinois, in UTM Zones 15 and 16, NAD83. Ort...

20.
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Fish Species Occurrence Database: Pennsylvania

1998. Pennsylvania Fish and Boat Commission. Historical listing (1975-1995) of Pennsylvania fish species occurrences, as documented at 10,780 sampling points on streams and rivers throughout t...