The Signal Hill Trail at Saguaro National Park in Tucson, Arizona is an easy 0.3 mile out-and-back hike up to the top of Signal Hill, with views of the Avra Valley, Saguaro National Park's mountains, and ancient petroglyphs on the surrounding rocks.
The hike starts off at the end of Signal Hill Road and quickly descends a small hill, passing picnic areas, before heading up to the top of Signal Hill. Just before the climb to the top of Signal Hill, you'll find an interpretive sign which explains the petroglyphs - from this sign, look to the top of the hill at the dark rocks where you'll find petroglyphs.
At the top of Signal Hill you'll get sweeping views of the Avra Valley, distant mountain ranges, more petroglyphs, and better views into Saguaro National Park itself. You can also find the trailhead for the Cactus Wren Trail at the top.
Petroglyphs: The petroglyphs, created by the Hohokam people hundreds of years ago, can be seen easiest at the top of Signal Hill where many of them are just feet away from you. There's a metal railing, which is meant to keep you off of the rocks to not disturb the petroglyphs as they can easily be damaged. Please do not touch the petroglyphs, just appreciate them from behind the railing.
Snakes: Beware that rattlesnakes like to hang out on the dark rocks to soak up sunlight, so watch out for snakes along this trail.
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