Big Ten Academic Alliance Geospatial Discovery Portal

Big Ten Academic Alliance Geoportal

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1.
Vector Created with Sketch.

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 and Minnesota Department of Natural Resources (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.
1969 traffic map, state of Indiana: 24 hour annual average total traffic

1969 traffic map, state of Indiana: 24 hour annual average total traffic

1969. Insets: Indianapolis -- [New Albany area]. Scale approximately 1:650,000. Prepared by the Division of Planning, Indiana State Highway Commission in...

4.
[1970 census enumeration district and census tract map of Monroe County, Indiana].

[1970 census enumeration district and census tract map of Monroe County, Indiana].

1970?. Title supplied by cataloger.; Blue line print.; Base map: General Highway and transportation map, Monroe County, Indiana / prepared by the Indiana ...

5.
32,000 to vote in 29 precincts here: [Bloomington, Ind.].

32,000 to vote in 29 precincts here: [Bloomington, Ind.].

1966. From Daily Herald-Telephone, Bloomington, Indiana, November 4, 1966.; Map shows voting precincts inside the City of Bloomington, Indiana, and inclu...

6.
7th congressional district of Indiana, 1972.

7th congressional district of Indiana, 1972.

1972. Boundaries of 7th Congressional District of Indiana in 1972 drawn on a copy of Counties and townships map, p. 10 of Kingsbury, Robert C., An atlas ...

7.
A map of Bloomington & Monroe County, Indiana: including Ellettsville & Indiana University

A map of Bloomington & Monroe County, Indiana: including Ellettsville & Indiana University

1989. Includes text, indexes, advertisement, and 10 indexed ancillary subdivision maps. Scales differ. Spectrum; presented by Bank One and Greater Bloomi...

8.
A map of Indiana showing its history, points of interest, and the holdings of the Indiana Dept. of Conservation

A map of Indiana showing its history, points of interest, and the holdings of the Indiana Dept. of Conservation

1954. Carter, Lee (Cartographer). Pictorial map. Cited in LC's Trails bibliography, no. 111. Scale 1:600,000. Lee Carter, cartographer, 1932.

10.
Abandoned railroads of Indiana.

Abandoned railroads of Indiana.

1960?. Pen and ink.; Base map: Geological Survey (U.S.). State of Indiana, Scale 1:500,000, Washington, D.C., 1950. Scale approximately 1:2,027,520.

11.
Vector Created with Sketch.

Active Railroads: Pennsylvania

1996. Environmental Resources Research Institute. Location of active rail lines in Pennsylvania, digitized from 1:24,000 USGS topographic maps on a stable mylar base.

12.
Vector Created with Sketch.

Advisory Neighborhood Commission: Washington, D.C., 1990

1990. Advisory Neighborhood Commission (ANC) polygons. This dataset contains polygons representing ANC boundaries in 1990C. Office of the Chief Technolog...

13.
Aerial gamma radiation in Minnesota and adjacent areas of North Dakota and South Dakota, M-83

Aerial gamma radiation in Minnesota and adjacent areas of North Dakota and South Dakota, M-83

1996. Lively, R.S. and Morey, G.B. Maps showing general Quaternary age surface geology of Minnesota and distribution of uranium, thorium and potassium-40 in surface sediments, scale ...

14.
Image

Aerial Image Service: Lorain County, Ohio, 1999

1999. 1999_Aerial_Image_Service.

15.
Aerial Imagery: Hennepin County, Minnesota, 1953

Aerial Imagery: Hennepin County, Minnesota, 1953

1953. Rectified black and white aerial imagery of Hennepin County captured during the fall of 1953.

16.
Aerial Imagery: Hennepin County, Minnesota, 1957

Aerial Imagery: Hennepin County, Minnesota, 1957

1957. Rectified black and white aerial imagery of Hennepin County captured during the spring of 1957.

17.
Aerial Imagery: Hennepin County, Minnesota, 1964

Aerial Imagery: Hennepin County, Minnesota, 1964

1964. Rectified black and white aerial imagery of Hennepin County captured during the fall of 1964.

18.
Aerial Imagery: Hennepin County, Minnesota, 1969

Aerial Imagery: Hennepin County, Minnesota, 1969

1969. Rectified black and white aerial imagery of Hennepin County from 1969.

19.
Aerial Imagery: Hennepin County, Minnesota, 1988

Aerial Imagery: Hennepin County, Minnesota, 1988

1988. Rectified black and white aerial imagery of the City of Minneapolis captured during the spring of 1988.

20.
Aerial Imagery: Hennepin County, Minnesota, 1989

Aerial Imagery: Hennepin County, Minnesota, 1989

1989. Rectified black and white aerial imagery of western Hennepin County captured during the spring of 1989.

21.
Raster
22.
Raster

Aerial Photography 1996: Philadephia, Pennsylvania

1996. Philadelphia aerial photography.

23.
Aerial Photography: Carver County, Minnesota, 1991

Aerial Photography: Carver County, Minnesota, 1991

1991. Carver County 2011 Imagery.

24.
Aerial Photography Counties: Iowa, 1950s

Aerial Photography Counties: Iowa, 1950s

1950. Iowa Department of Natural Resources. 1950s Aerial Photography of Iowa County dataset in a zipped file.

25.
Aerial Photography Counties: Iowa, 1960s

Aerial Photography Counties: Iowa, 1960s

1960. Iowa Department of Natural Resources. 1960s Aerial Photography of Iowa County Dataset in a zipped file.

26.
Aerial Photography Counties: Iowa, 1970s

Aerial Photography Counties: Iowa, 1970s

1970. Iowa Department of Natural Resources. 1970s Aerial Photography of Iowa Each zip file contains a county raster dataset.

27.
Vector Created with Sketch.

Aerial Photography Dates: Iowa, 1950s

1950. Iowa Department of Natural Resources. Zipped file Contains a dateset of the centroids, with dates, of the individual images used.

28.
Vector Created with Sketch.

Aerial Photography Dates: Iowa, 1960s

1960. Iowa Department of Natural Resources. This dataset is centroids with dates of the individual images used.

29.
Vector Created with Sketch.

Aerial Photography Dates: Iowa, 1970s

1970. Iowa Department of Natural Resources. This shapefile has centroids with dates of all images used in this dataset.

30.
Raster

Aerial Photography: Mifflin County, Pennsylvania

1995. Mifflin County - Laura H. McLaughlin. Aerial Orthophotograph taken on April 5, 1995.

31.
Aeromagnetic anomaly map of Minnesota, S-11

Aeromagnetic anomaly map of Minnesota, S-11

1982. Chandler, Val W. Aeromagnetic anomaly (total magnetic intensity anomaly (relative to the earth's magnetic field, interpretation of magnetic data collected from airb...

32.
Aeromagnetic anomaly map of Minnesota, S-17

Aeromagnetic anomaly map of Minnesota, S-17

1992. Chandler, Val W. Aeromagnetic anomaly (total magnetic intensity anomaly (relative to the earth's magnetic field, interpretation of magnetic data collected from airb...

33.
Aeromagnetic map of Minnesota, Carlton and Pine counties, Plate 1

Aeromagnetic map of Minnesota, Carlton and Pine counties, Plate 1

1983. Chandler, Val W. Total magnetic intensity anomaly (relative to the earth's magnetic field), color coded, scale 1:250,000. Interpretation of magnetic data collected...

34.
Aeromagnetic map of Minnesota, Carlton and Pine counties, Plate 2

Aeromagnetic map of Minnesota, Carlton and Pine counties, Plate 2

1983. Chandler, Val W. Total magnetic intensity anomaly, contour, scale 1:250,000. Interpretation of magnetic data collected from airborne surveys, the map contours (line...

35.
Aeromagnetic map of Minnesota, central region, Plate 1

Aeromagnetic map of Minnesota, central region, Plate 1

1985. Chandler, Val W. Total magnetic intensity anomaly (relative to the earth's magnetic field), color coded, scale 1:250,000. Interpretation of magnetic data collected...

36.
Aeromagnetic map of Minnesota, central region, Plate 2

Aeromagnetic map of Minnesota, central region, Plate 2

1985. Chandler, Val W. Total magnetic intensity anomaly, contour, scale 1:250,000. Interpretation of magnetic data collected from airborne surveys, the map contours (line...

37.
Aeromagnetic map of Minnesota, Cook and Lake counties, Plate 1

Aeromagnetic map of Minnesota, Cook and Lake counties, Plate 1

1983. Chandler, Val W. Total magnetic intensity anomaly (relative to the earth's magnetic field), color coded, scale 1:250,000. Interpretation of magnetic data collected...

38.
Aeromagnetic map of Minnesota, Cook and Lake counties, Plate 2

Aeromagnetic map of Minnesota, Cook and Lake counties, Plate 2

1983. Chandler, Val W. Total magnetic intensity anomaly, contour, scale 1:250,000. Interpretation of magnetic data collected from airborne surveys, the map contours (line...

39.
Aeromagnetic map of Minnesota, east-central region, Plate 1

Aeromagnetic map of Minnesota, east-central region, Plate 1

1983. Chandler, Val W. Total magnetic intensity anomaly (relative to the earth's magnetic field), color coded, scale 1:250,000. Interpretation of magnetic data collected...

40.
Aeromagnetic map of Minnesota, east-central region, Plate 2

Aeromagnetic map of Minnesota, east-central region, Plate 2

1983. Chandler, Val W. Total magnetic intensity anomaly, contour, scale 1:250,000. Interpretation of magnetic data collected from airborne surveys, the map contours (line...

41.
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...

42.
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...

43.
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...

44.
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...

45.
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...

46.
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...

47.
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...

48.
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...

49.
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...

50.
Aeromagnetic map of Minnesota, northwestern region, Plate 1

Aeromagnetic map of Minnesota, northwestern region, Plate 1

1989. Chandler, Val W. Total magnetic intensity anomaly (relative to the earth's magnetic field), color coded, scale 1:250,000. Interpretation of magnetic data collected...

51.
Aeromagnetic map of Minnesota, northwestern region, Plate 2

Aeromagnetic map of Minnesota, northwestern region, Plate 2

1989. Chandler, Val W. Total magnetic intensity anomaly, contour, scale 1:250,000. Interpretation of magnetic data collected from airborne surveys, the map contours (line...

52.
Aeromagnetic map of Minnesota, southeastern region, Plate 1

Aeromagnetic map of Minnesota, southeastern region, Plate 1

1991. Chandler, Val W. Total magnetic intensity anomaly (relative to the earth's magnetic field), color coded, scale 1:250,000. Interpretation of magnetic data collected...

53.
Aeromagnetic map of Minnesota, southeastern region, Plate 2

Aeromagnetic map of Minnesota, southeastern region, Plate 2

1991. Chandler, Val W. Total magnetic intensity anomaly, contour, scale 1:250,000. Interpretation of magnetic data collected from airborne surveys, the map contours (line...

54.
Aeromagnetic map of Minnesota, southwestern region, Plate 1

Aeromagnetic map of Minnesota, southwestern region, Plate 1

1989. Chandler, Val W. Total magnetic intensity anomaly (relative to the earth's magnetic field), color coded, scale 1:250,000. Interpretation of magnetic data collected...

55.
Aeromagnetic map of Minnesota, southwestern region, Plate 2

Aeromagnetic map of Minnesota, southwestern region, Plate 2

1989. Chandler, Val W. Total magnetic intensity anomaly, contour, scale 1:250,000. Interpretation of magnetic data collected from airborne surveys, the map contours (line...

56.
Aeromagnetic map of Minnesota, St Louis county, Plate 1

Aeromagnetic map of Minnesota, St Louis county, Plate 1

1983. Chandler, Val W. Total magnetic intensity anomaly (relative to the earth's magnetic field), color coded, scale 1:250,000. Interpretation of magnetic data collected...

57.
Aeromagnetic map of Minnesota, St Louis county, Plate 2

Aeromagnetic map of Minnesota, St Louis county, Plate 2

1983. Chandler, Val W. Total magnetic intensity anomaly, contour, scale 1:250,000. Interpretation of magnetic data collected from airborne surveys, the map contours (line...

58.
Aeromagnetic map of Minnesota, west-central region, Plate 1

Aeromagnetic map of Minnesota, west-central region, Plate 1

1987. Chandler, Val W. Total magnetic intensity anomaly (relative to the earth's magnetic field), color coded, scale 1:250,000. Interpretation of magnetic data collected...

59.
Aeromagnetic map of Minnesota, west-central region, Plate 2

Aeromagnetic map of Minnesota, west-central region, Plate 2

1987. Chandler, Val W. Total magnetic intensity anomaly, contour, scale 1:250,000. Interpretation of magnetic data collected from airborne surveys, the map contours (line...

60.
Aggregate resources inventory, Twin Cities Metropolitan Area, Minnesota, IC-20, Plate 1

Aggregate resources inventory, Twin Cities Metropolitan Area, Minnesota, IC-20, Plate 1

1984. Meyer, Gary N. and Jirsa, Mark A. Sand and gravel aggregate resources, geologic map units, seven county metropolitan area, Minnesota, scale 1:250,000.

61.
Aggregate resources inventory, Twin Cities Metropolitan Area, Minnesota, IC-20, Plate 2

Aggregate resources inventory, Twin Cities Metropolitan Area, Minnesota, IC-20, Plate 2

1984. Meyer, Gary N. and Jirsa, Mark A. Bedrock (crushed rock) aggregate resources, geologic map units, seven county metropolitan area, Minnesota, scale 1:250,000.

62.
Vector Created with Sketch.

Agricultural security areas: Pennsylvania

1996. Penn State ORSER/ERRI. Agricultural security areas from LLRWS data.

63.
Agriculture Census: Indiana

Agriculture Census: Indiana

1997. United States Geological Survey and Bernardin-Lochmueller & Associates. USGS National Atlas metadata states "This data set portrays the National Agricultural Statistics Service, U.S. Department of Agriculture's 1997 Ce...

64.
Image

Airdevronsix Icefalls: Antarctica

1987. Jean-Claude M. Thomas. Projection: Lambert Conformal Conic Projection - Standard Parallels -76°40' and -79°20'; Series: USGS Satellite Image Maps.

65.
Image

Alexandra Mountains: Antarctica

1969. Projection: Lambert Conformal Conic Projection: Standard Parallels -76°40' and -79°20'; Series: USGS 1:250,000 Topographic Reconnaissance Series.

66.
Image

Alexandra Mountains: Antarctica

1977. Wade; Cathey; Oldham. Projection: Lambert Conformal Conic Projection: Standard Parallels -76°40' and -79°20'; Series: USGS 1:250,000 Geologic Reconnaissance Series.

67.
Vector Created with Sketch.

Ambient and fixed station network groundwater monitoring point data (1985 - 1998): Pennsylvania

1999. Pennsylvania Department of Environmental Protection. This coverage represents the point locations and data for 1,106 groundwater quality monitoring points sampled under the PA DEP Fixed Station Networ...

68.
Vector Created with Sketch.

Annual Average Daily Traffic (AADT) Turning Traffic 1999: Iowa

1999. Iowa Department of Transportation. Iowa turning traffic data (AADT) for intersections on the primary, secondary and municipal roadway systems for 1999. The state is divided into 4 qu...

69.
Vector Created with Sketch.

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

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

70.
Image

Antarctic Exploration and Claims: As of 1 February 1956: Antarctica

1956. Downloaded from CIA Flickr page: https://www.flickr.com/photos/ciagov/albums/72157674885572481/with/30252922504/; Series: CIA Declassified Maps.

71.
Vector Created with Sketch.

Archived Land Use Land Cover 1973: Maryland

1973. This is a MD iMAP hosted service. Find more information on http://imap.maryland.gov. This layer contains land use land cover information for the ye...

72.
Vector Created with Sketch.

Archived Submerged Aquatic Vegetation - SAV 1984: Maryland

1984. This is a MD iMAP hosted service. Find more information on http://imap.maryland.gov. The Chesapeake Bay SAV Coverage was mapped from 1:24,000 black...

73.
Vector Created with Sketch.

Archived Submerged Aquatic Vegetation - SAV 1985: Maryland

1985. 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...

74.
Vector Created with Sketch.

Archived Submerged Aquatic Vegetation - SAV 1986: Maryland

1986. 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...

75.
Vector Created with Sketch.

Archived Submerged Aquatic Vegetation - SAV 1987: Maryland

1987. 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...

76.
Vector Created with Sketch.

Archived Submerged Aquatic Vegetation - SAV 1989: Maryland

1989. 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...

77.
Vector Created with Sketch.

Archived Submerged Aquatic Vegetation - SAV 1990: Maryland

1990. 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...

78.
Vector Created with Sketch.

Archived Submerged Aquatic Vegetation - SAV 1991: Maryland

1991. 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...

79.
Vector Created with Sketch.

Archived Submerged Aquatic Vegetation - SAV 1992: Maryland

1992. 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...

80.
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...

81.
Vector Created with Sketch.

Archived Submerged Aquatic Vegetation - SAV 1994: Maryland

1994. 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...

82.
Vector Created with Sketch.

Archived Submerged Aquatic Vegetation - SAV 1995: Maryland

1995. 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...

83.
Vector Created with Sketch.

Archived Submerged Aquatic Vegetation - SAV 1996: Maryland

1996. 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...

84.
Vector Created with Sketch.

Archived Submerged Aquatic Vegetation - SAV 1997: Maryland

1997. 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...

85.
Vector Created with Sketch.

Archived Submerged Aquatic Vegetation - SAV 1998: Maryland

1998. 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...

86.
Vector Created with Sketch.

Archived Submerged Aquatic Vegetation - SAV 1999: Maryland

1999. 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...

87.
Area map: Nashville and park entrance.

Area map: Nashville and park entrance.

1970?. Blue line print.; Shows corporate limits of Nashville Indiana, roads, some buildings, Salt Creek, the north entrance to Brown County State Park and...

88.
Image

Argentina Range: Antarctica

1967. Projection: Polar Stereographic Projection: Standard Parallel -80°14'; Series: USGS 1:250,000 Topographic Reconnaissance Series.

89.
Average annual precipitation in inches.

Average annual precipitation in inches.

1970. Kingsbury, Robert C. Detached from: Kingsbury, Robert C. Atlas of Indiana, page 26. Computer generated isometric map obtained through use of the facilities of Indiana U...

90.
Average annual snowfall in inches.

Average annual snowfall in inches.

1970. Kingsbury, Robert C. Detached from: Kingsbury, Robert C. Atlas of Indiana, page 28. Computer generated isometric maps obtained through use of the facilities of Indiana ...

91.
Average January temperature in degrees Fahrenheit.

Average January temperature in degrees Fahrenheit.

1970. Kingsbury, Robert C. Detached from: Kingsbury, Robert C. Atlas of Indiana, page 25. Computer generated isometric maps obtained through use of the facilities of Indiana ...

92.
Image

Bakutis Coast - Marie Byrd Land: Antarctica

1968. Projection: Polar Stereographic Projection: Standard Parallel -71°; Series: USGS Sketch Maps.

93.
Bartholomew County, Indiana

Bartholomew County, Indiana

1978. Black line print. 'Advance composite, subject to correction.' '1978.' Scale 1:100,000; Universal transverse Mercator United States, Department of t...

94.
Base map of Monroe County, Indiana

Base map of Monroe County, Indiana

1968. Moran, W. H. (William H.) and Heisterkamp, A. J. Blue line map. 'May 1, 1951, revised January 1, 1968.' Shows township and range numbers, section boundaries without numbers, State and National For...

95.
Image

Beacon Valley: Antarctica

1992. Projection: Lambert Conformal Conic Projection: Standard Parallels -76°40' and -79°20'; Series: USGS 1:50,000 Topographic Series.

96.
Image

Bear Peninsula: Antarctica

1978. Projection: Lambert Conformal Conic Projection: Standard Parallels -72°40' and -75°20'; Series: USGS 1:250,000 Topographic Reconnaissance Series.

97.
Bedrock Aquifer Systems: Indiana

Bedrock Aquifer Systems: Indiana

1994. United States Geological Survey (USGS) and Indiana Geological Survey. Four types of bedrock aquifers in 12 water-management basins identified by the Indiana Natural Resources Commission (INRC) in Indiana were identifi...

98.
Bedrock geologic and topographic maps of the Minneapolis-St. Paul urban area, Minnesota, M-57, Plate 1

Bedrock geologic and topographic maps of the Minneapolis-St. Paul urban area, Minnesota, M-57, Plate 1

1985. Bloomgren, Bruce A. Interpretations of bedrock geology (distribution of rock at the land surface and beneath surface sediments) of the Minneapolis and St. Paul urban a...

99.
Bedrock geologic and topographic maps of the Minneapolis-St. Paul urban area, Minnesota, M-57, Plate 2

Bedrock geologic and topographic maps of the Minneapolis-St. Paul urban area, Minnesota, M-57, Plate 2

1985. Bloomgren, Bruce A. Bedrock topography (elevation of the bedrock sruface) map of the Minneapolis and St. Paul urban area, scale 1:48,000.

100.
Bedrock geologic and topographic maps of the seven-county Twin Cities Metropolitan Area, Minnesota, M-55, Plate 1

Bedrock geologic and topographic maps of the seven-county Twin Cities Metropolitan Area, Minnesota, M-55, Plate 1

1986. Jirsa, Mark A., Olsen, Bruce M., and Bloomgren, Bruce A. Interpretations of bedrock geology (distribution of rock at the land surface and beneath surface sediments) of the Twin Cities, seven-county metrop...