Big Ten Academic Alliance Geospatial Discovery Portal

Big Ten Academic Alliance Geoportal

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1.
Map of Prince George's County public schools, 1974-1975

Map of Prince George's County public schools, 1974-1975

1974-1975. Map of Prince George's County public schools, special education centers and offices from 1974 to 1975. 57.9 x 73.5 cm; 1 images; color; Print.

2.
Map of Prince George's County public schools and special education centers, 1974-1975

Map of Prince George's County public schools and special education centers, 1974-1975

1974-1975. Map of Prince George's County public schools and special education centers from 1974 to 1975. 57.9 x 73.5 cm; 1 images; color; Print.

3.
Image

Orthophotography: Baltimore County, Maryland, 2017

2017. Baltimore County Web Map Portal. The 2017 Orthophotography dataset was captured in a project managed by the State of Maryland. The program is managed by the Maryland Geographic Inf...

4.
A New Map of Virginia, Maryland and the Improved Parts of Pennsylvania and New Jersey, 1719

A New Map of Virginia, Maryland and the Improved Parts of Pennsylvania and New Jersey, 1719

1719. Map of Maryland, Virginia, and surrounding areas, 1719. 49 x 54 cm; 1 images.

5.
Image

Above-Ground Biomass, 30 Meter Resoulution, Statewide: Maryland, 2011

2011. ArcGIS Online for Maryland. This is a MD iMAP hosted service. Find more information at http://imap.maryland.gov.Maryland aboveground biomass map [30m] generated using Random F...

6.
Image

Aerial Imagery, 1 Meter Resolution, Statewide, National Agriculture Imagery Program: Maryland, 2017

2017. ArcGIS Online for Maryland. This is a MD iMAP hosted service. Find more information at http://imap.maryland.gov.The National Agriculture Imagery Program (NAIP) acquires aerial...

7.
Image

Aerial Imagery, 3 Inch Resolution: Baltimore, Annapolis, Gaithersburg, Maryland, 2014, 2016

2014, 2016. ArcGIS Online for Maryland. This is a MD iMAP hosted service. Find more information at http://imap.maryland.gov.This image service provides Three Inch resolution aerial imager...

8.
Image

Aerial Imagery, 6 Inch Resolution, Statewide: Maryland, 2014, 2016

2014, 2016. ArcGIS Online for Maryland. This is a MD iMAP hosted service. Find more information at http://imap.maryland.gov.This image service provides Six Inch resolution aerial imagery ...

9.
America pars, Virginia dicta, 1590

America pars, Virginia dicta, 1590

1590. Map showing Virginia and surrounding areas, 1590. First map to show and name the Chesapeake Bay. 31 x 42 cm; 1 images; color.

10.
Approaches to Baltimore Harbor, Maryland, 1905

Approaches to Baltimore Harbor, Maryland, 1905

1905. Map of Baltimore Harbor in Maryland, 1905. 70.5 x 66 cm; 1 images.

11.
Baltimore, 1838

Baltimore, 1838

1838. Map of Baltimore, Maryland, 1838. 35.5 x 47.7 cm; 1 images.

12.
Baltimore Showing the District Boundaries, undated

Baltimore Showing the District Boundaries, undated

1851. Map showing electoral districts for Baltimore, Maryland, undated. 37.3 x 42.9 cm; 1 images.

13.
Image

Bare Earth DEM: Baltimore County, Maryland, 2005

2005. Baltimore County Web Map Portal. Gridded bare Earth DEM created from LiDAR flows in spring of 2005.

14.
Raster

Bare Earth DEM: Baltimore County, Maryland, 2014

2014. Baltimore County Web Map Portal. Bare Earth DEM for Baltimore County. LiDAR flown in 2014.

15.
Carte de la Virginia et du Maryland, 1757

Carte de la Virginia et du Maryland, 1757

1757. Map of Maryland and Virginia, 1757. 48 x 64 cm; 1 images.

16.
Raster

Conditioned DEM: Baltimore County, Maryland, 2014

2014. Baltimore County Web Map Portal. Hydrologic Conditioned DEM created from liDAR captured in spring of 2014.

17.
Image

Digital Orthophoto Quads, Color Infrared DOQs: Maryland

2019. ArcGIS Online for Maryland. This is a MD iMAP hosted service. Find more information on http://imap.maryland.gov. The color infrared (CIR) digital orthophotoquad (DOQ), as orig...

18.
Image

Digital Orthophoto Quads, Color Infrared DOQs: Maryland

2019. ArcGIS Online for Maryland. This is a MD iMAP hosted service. Find more information on http://imap.maryland.gov. The color infrared (CIR) digital orthophotoquad (DOQ), as orig...

19.
Image

Digital Orthophoto Quads, Panchromatic DOQs: Maryland

2019. ArcGIS Online for Maryland. This is a MD iMAP hosted service. Find more information on http://imap.maryland.gov. This map service contains a mosaic of Maryland Panchromatic DO...

20.
Image

Digital Orthophoto Quads, Panchromatic DOQs: Maryland

2019. ArcGIS Online for Maryland. This is a MD iMAP hosted service. Find more information on http://imap.maryland.gov. This map service contains a mosaic of Maryland Panchromatic DO...