Big Ten Academic Alliance Geospatial Discovery Portal

Big Ten Academic Alliance Geoportal

Allegheny County - Spot Elevation: Pennsylvania, 2006

Author:
Description:
Spot Elevation data was created as a result of a county flyover in the spring of 2004. They were created from a DTM Feature Dataset, upgraded by Baker and T-3 to support National Mapping Accuracy Standards (NMAS). Spot Elevations are used to show additional elevation information. They are located in flat areas where contours may be sparse or spaced far apart, at road and railroad intersections, on the road centerline at the ends of bridges, on the road centerline over the center of culverts that have a span of five (5)-foot or greater, at the crest of all tops of hills, at saddles, within depressions and where the ground is visible in obscured areas.
Collection:
Pennsylvania Spatial Data Access (PASDA)
Places:
Allegheny County, Pennsylvania, United States and Pennsylvania, United States
Subjects:
Imagery and Base Maps and Elevation
Year:
2006
Contributed by:
Penn State
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