GEOG 121 Project 3:
Finding, Retrieving, and Viewing National Map Data

Robert Drone

Digital Elevation Model (DEM)

The area covered by this map is Scranton, PA, in Lackawanna County.  I retrieved the information from the USGS website: http://edc.usgs.gov/geodata/ .  This is a 7.5 minute DEM, with a resolution of 30 meters.  The software I used to create this image was Dlgv32 Pro.  I know that this is supposed to be a map of the Scranton area, but to tell you the truth, I do not recognize the landforms in the image.  The next two images very clearly show the river that runs through Scranton, but I do not see the shape of that river in this image.  Also, downtown Scranton lies in the valley of that river with two mountains rising above it on either side of the valley, yet I cannot pinpoint the location of that valley or those mountains here.  I wonder if any of the other students ran into this problem with their images.

Digital Line Graphs (DLG)

The area covered by this map is Scranton, PA, in Lackawanna County.  I retrieved the information from the USGS website: http://edc.usgs.gov/geodata/ .  This a hydrographic map.  The software I used to create this image was Dlgv32 Pro.  The dark squiggly line running to the northeast is the Lackawanna River, which runs along downtown Scranton.  The branch of it running to the east is Roaring Brook.  The blue blob in the lower, right-hand corner is Lake Scranton.  The area has more rivers than I thought it did.  But then again I never did travel much into the northern and western parts of the map, because the developed areas run southwest to northeast through the valley.

The area covered by this map is Scranton, PA, in Lackawanna County.  I retrieved the information from the USGS website: http://edc.usgs.gov/geodata/ .  The date of this DOQQ is Apr. 14, 1999.  I used the USGS website to view this image.  The dark, squiggly line running north through the middle of the map is the Lackawanna River.  Roaring Brook runs east from it.  The white strip running east off the map and then back on the map farther to the north is Interstate 81.  The gray strip running north from the Lackawanna River in the western part of the map is the North Scranton Expressway.  The tiny strip running across Roaring Brook from southwest to northeast is the Harrison St. bridge.  And the buildings located in the first bend of the Lackawanna River, after Roaring Brook branches off, is the Steamtown National Historic Site.

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