So, to give
you an idea of how accurate Google Earth can be, here's a sample of a
real photo taken based on a location in Google Maps. Google Maps will
give you a very accurate look at the terrain. This is near Ridgway,
Colorado. Same exact scene from a computer drawing and a real
photograph. Pretty close if you ask me. The real trick here is to scroll your view in Google Earth down to ground or near ground level and use the panning tools to view the horizon.
The above Google Earth representation is probably higher above the ground by 100 feet or so.
I use this method of pre-scouting locations all the time. At the very least, I've found it quite helpful for getting a feel of an area before making the trip. More often than not, the actual scene is far more dramatic and useful than what I find on the Google Earth view.