slope analysis

Discussion created by hood0026 on Nov 15, 2010
Latest reply on Nov 15, 2010 by Dan_Patterson
When I use the Spatial Analyst extension to complete a slope analysis on a DEM the classification doesn't make any sense.  The following is the classification when using the percent option:
and these number continue past 2,000,000.

When I use the Degree option the image appears a solid color and it won't let me classify more then 1 class which is 0-90...

In addition, I have been able to successfully use the aspect tool.  However I can't figure out how to analyze a group of GPS point on top of the raster.  I am trying to figure out which aspect the points are usually on.