The road to, and picnic area at, Signal Hill picnic area is currently under construction. The trail itself is still open to the public, and can be accessed via Manville Trail (entrance along Sandario Road). NO ACCESS TO SIGNAL HILL VIA THE ROAD IS ALLOWED, THIS MEANS DO NOT PARK AT ENTRANCE TO THE ROAD AND/OR WALK DOWN THE ROAD! 


Signal Hill is a popular multi-use area along the Bajada Loop Drive in Saguaro National Park's west district. This is a popular destination, as it is the best place to see petroglyphs within the park. There are trails that start from this destination, as well as a picnic area. The trails from this area (including the short walk up to the petroglyphs) are not ADA accessible.