Lab #6

Maps of The Sierra Madre

Shaded Relief Model

Aspect Map

Slope Map

3-D Model

These images are digital elevation models (DEM) that represent the area around the Sierra Madre in California in UTM zone 11N. I selected this area because since the Sierra Madre is a mountain range, it would have some areas with greater elevations than other areas. This region looked appealing on the elevation map of the United States. The shaded relief map highlights the high and low areas of the area around the Sierra Madre. The lighter blue areas have lower elevation than the dark blue areas. The slope map focuses on the inclination of the land. I finished my slope map before I got the hint that we were supposed to change the z factor from default to 0.001, therefore my slope map is not very significant. Therefore, the slope inclination is not very clear. The aspect map shows what direction certain parts of the map are facing. The red areas are facing north, green facing south, blue facing west, and yellow facing east. The 3D map was my favorite one. It looks really cool! Basically, this map shows the 3-dimensional figure of the Sierra Madre and the areas around it in California. The dark purple areas are the peaks while the yellow areas display the flat lands. The spatial reference I used for this exercise was GCS_North_American_1983. The extent information of the area I picked is as follows:

Top: 34.34017 degrees
Bottom: 33.98703 degrees
Left: -118.40653 degrees
Right: -117.70025 degrees