This is one of my favorite photos of the city, a view from South Mountain. A monsoon blew in, and in the photo below, you can see the wall of wind moving through downtown Phoenix.
South Mountain Park is the largest muncipal park in the world. Seven miles of paved road take drivers to scenic views at 2,300 and 2,600 feet. I think I snapped this photo from the second view point, but I'm not sure. The park is 16,000 acres and offers 51 miles of trails.