- The Signal Hill Petroglyphs are located on a small rocky hill in Saguaro National Park West
- The site features over 200 prehistoric Native American petroglyphs that are estimated to be between 550 and 1550 years old
- The petroglyphs are easy to spot on the boulders that crown the hill, which is accessible by a well-signed trail that begins at the Signal Hill Picnic Area
- The trail is less than 0.5 miles roundtrip and is considered one of the park's best easy trails to ancient petroglyphs
- It is unknown whether the petroglyphs were religious symbols, directional signals, or simply decorative.
- The petroglyphs include abstract geometric and spiral designs, as well as depictions of animals and people
- The site features over 200 prehistoric Native American petroglyphs that are estimated to be between 550 and 1550 years old
- The petroglyphs are easy to spot on the boulders that crown the hill, which is accessible by a well-signed trail that begins at the Signal Hill Picnic Area
- The trail is less than 0.5 miles roundtrip and is considered one of the park's best easy trails to ancient petroglyphs
- It is unknown whether the petroglyphs were religious symbols, directional signals, or simply decorative.
- The petroglyphs include abstract geometric and spiral designs, as well as depictions of animals and people