Signal Hill Trail Professional Guide
Detailed Trail Description from our Guidebook
"The Signal Hill Trail is a short walk to a hill with a 360-degree view of the northern Tucson Mountains, as well as fine examples of ancient petroglyphs. This very short trail leads to the top of a small hill with a fine collection of petroglyphs.
There are two main types of rock art: pictographs, which are painted onto the rock, and petroglyphs such as these, which are pecked or carved into the rock. Although some people have the impression that petroglyphs are casual doodling, stone is actually a difficult medium to work, somewhat harder than doodling on a pad of paper."