Friday, November 26, 2010

Lab 6 - DEMS in ArcGIS

After acquiring DEM data from the USGS website, I created a set of maps of the Grand Canyon in Arizona. I chose this famous historic site because of its dramatic and intricate elevation changes. Carved by the Colorado River, the Grand Canyon extends 277 miles and boasts areas as wide as 18 miles and deeper than a mile. Most of the area lies within the Grand Canyon National Park, which helps preserve its rich geological history and diversity of species. As an extensive rift in the Colorado Plateau that contains Proterozoic and Paleozoic layers, any section of the Grand Canyon is sure to produce a unique Digital Elevation Model. The slope of the area I selected remains fixed for the most part, thus producing a virtually single-colored map. However, the other 3 maps proved visually stunning, reflecting the impressive landscape of the Grand Canyon and the flowing Colorado River.

Extent information:
N: 36.47169*
W: -112.15541*
S: 35.98538*
E: -111.74667*

Geographic Spatial Coordinate System:
GCS North American 1983






Grand Canyon, Arizona
3D Elevation Model

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