Tumamoc Hill, Hill in Tucson, Arizona, United States

Tumamoc Hill is a desert hill in Tucson, Arizona, United States. The hill rises above the city's west side and is covered with saguaro cacti and desert scrub, with a paved road leading to the top.

Tumamoc Hill has been used for research and observation for over a century. It was set aside as a desert laboratory in the early 1900s and continues to be a site for scientific study.

The hill is a popular spot for local residents to exercise, especially in the early morning. The name comes from the O'odham word for the hill, and the site holds meaning for the Tohono O'odham people.

The walk up follows a paved road that is steep in places, so bring water and sun protection. The path is shared with runners and walkers, and the gate is open during daylight hours.

The hill is home to a long-term desert ecology study that has monitored plants since 1906. Some of the saguaros and other plants on the slopes have been tracked for decades, offering a rare record of desert life.