Although Lake Mead National Recreation Area covers a huge area, from Overton 100 miles south to Davis Dam near Bullhead City, and from Lake Las Vegas 60 miles east to Pearce Ferry, most is rather inaccessible. The main sites are concentrated along the west shore, from Hoover Dam to Callville Bay, though on the south shore, Temple Bar also sees quite a few visitors, who come mainly for boating and fishing.
PDF format map of Lake Mead National Recreation Area, from the National Park Service (792 kb)