1) Create 2 kilometer BUFFER using my observation point as input
2) Create a Viewshed raster by using the elevation raster and my observation point
3) Use the Data Management Clip tool to use the output from #2 with the buffer from #1
That got me most of the way but the Data Management Clip only seems to clip based on a rectangle, so it created the smallest rectangle off of my circular buffer. I could not use the Analysis Clip tool because that did not accept a raster input.
So, my question is.... what is the proper workflow to do a Viewshed that is based on a designated distance?? My process above got me only so far because my clipped result was not a circular clip like I wanted. The rectangle clip I got included some areas outside of the distance of the buffer because it had to create a rectangular clip.
Thanks - Peter