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Big Ten Academic Alliance Geoportal

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1.
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Adams County, Illinois GIS

1872-2019. Adams County GIS. Geospatial datasets are publicly available via a FTP site access link, which is found on the Adams County, IL website GIS Department page linked he...

2.
Aerial Imagery: DuPage County, Illinois, 1956

Aerial Imagery: DuPage County, Illinois, 1956

1956. DuPage County Illinois. Aerial Imagery of DuPage County: 1956 (For reference only not to any scale).

3.
Aerial Imagery: DuPage County, Illinois, 1978

Aerial Imagery: DuPage County, Illinois, 1978

1978. DuPage County Illinois. Aerial Imagery of DuPage County: 1978.

4.
Aerial Imagery: DuPage County, Illinois, 1998

Aerial Imagery: DuPage County, Illinois, 1998

1998. DuPage County Illinois. DuPage County Black and White Ortho Imagery: 1998.

5.
Aerial Imagery: DuPage County, Illinois, 2002

Aerial Imagery: DuPage County, Illinois, 2002

2002. DuPage County Illinois. DuPage County region ortho Imagery: 2002/03.

6.
Aerial Imagery: DuPage County, Illinois, 2010

Aerial Imagery: DuPage County, Illinois, 2010

2010. DuPage County Illinois. Aerial Imagery of DuPage County: 2010.

7.
Aerial Imagery: DuPage County, Illinois, 2013

Aerial Imagery: DuPage County, Illinois, 2013

2013. DuPage County Illinois. Aerial Imagery of DuPage County: 2013.

8.
Aerial Imagery: DuPage County, Illinois, 2014

Aerial Imagery: DuPage County, Illinois, 2014

2014. DuPage County Illinois. Aerial Imagery of DuPage County: 2014.

9.
Aerial Imagery: DuPage County, Illinois, 2016-2017

Aerial Imagery: DuPage County, Illinois, 2016-2017

2016-2017. DuPage County Illinois. Aerial Imagery of DuPage County: 2016-2017 Imagery Service. Note: This imagery is used in the DuPage County Parcel Viewer.

10.
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Aerial Imagery Index Grid, 12-foot Resolution: Prince George's County, Maryland, 1998

1998. The Maryland-National Capital Park & Planning Commission.

11.
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Aerial Imagery Index Grid, 1-foot Resolution: Prince George's County, Maryland, 1998

1998. The Maryland-National Capital Park & Planning Commission.

12.
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Aerial Imagery Index Grid, 3-foot Resolution: Prince George's County, Maryland, 1998

1998. The Maryland-National Capital Park & Planning Commission.

13.
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Aerial Imagery Index Points: Prince George's County, Maryland, 1965

1965. The Maryland-National Capital Park & Planning Commission. The Commission has purchased a set of black & white imagery paper prints for all of Prince George's County, Maryland. This GIS point layer is used ...

14.
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Aerial Imagery Index Points: Prince George's County, Maryland, 1968

1968. The Maryland-National Capital Park & Planning Commission. The Commission has purchased a set of black & white imagery paper prints for all of Prince George's County, Maryland. This GIS point layer is used ...

15.
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Aerial Imagery Index Points: Prince George's County, Maryland, 1972

1972. The Maryland-National Capital Park & Planning Commission. The Commission has purchased a set of black & white imagery paper prints for all of Prince George's County, Maryland. This GIS point layer is used ...

16.
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Aerial Imagery Index Points: Prince George's County, Maryland, 2014

2014. The Maryland-National Capital Park & Planning Commission. The Commission purchased imagery for Spring 2014 from Kucera International, Inc. for all of Prince George's County, Maryland. This GIS point layer...

17.
Aerial Imagery: Sherburne County, Minnesota, 2014

Aerial Imagery: Sherburne County, Minnesota, 2014

2014. Sherburne County GIS. Aerial imagery obtained in the spring of 2014.

18.
Aerial Imagery: Sherburne County, Minnesota, 2015

Aerial Imagery: Sherburne County, Minnesota, 2015

2015. Sherburne County GIS. Digital Color orthophotography covering Sherburne County, Minnesota.

19.
Aerial Imagery, Spring: DuPage County, Illinois, 2011

Aerial Imagery, Spring: DuPage County, Illinois, 2011

2011. DuPage County Illinois. Aerial Imagery of DuPage County: 2011.

20.
Aerial Imagery, Spring: DuPage County, Illinois, 2012

Aerial Imagery, Spring: DuPage County, Illinois, 2012

2012. DuPage County Illinois. Aerial Imagery of DuPage County: 2012.