The University of Arizona

[College of Science]
Tumamoc Hill Open House

  • Jan 21
  • Jan 22
  • Jan 28
  • Jan 29

Saturdays and Sundays
January 21 & 22 and
January 28 & 29, 2012
10:00 a.m. - 5:00 p.m.
Location: Tumamoc: People & Habitats
1675 W. Anklam Road
Tucson, Arizona

The College of Science Tumamoc Hill Open House is a free public event featuring music, presentations and other festivities as part of Arizona’s centennial celebration. Located west of downtown, this 100-year-old desert laboratory and ecological reserve provides an extraordinary opportunity for the local community to participate in citizen science while learning about the city’s rich cultural and archaeological history and natural ecosystems.

Spanning more than 860 acres, Tumamoc: People & Habitats boasts long-range plant ecology studies, some going as far back as 1906. Its wealth of archaeological relics accumulated during the past 2,300 years has earned it recognition as a U.S. Archaeological District and a U.S. National Historical Landmark. Tumamoc Hill, providing amazing views of the Tucson valley and Sentinel Peak, is also a popular destination for walkers and trail runners.

Today Tumamoc scientists are pioneers in a new field of reconciliation ecology, an approach that is bringing nature to our neighborhoods and finding ways to prevent mass extinction of the Earth’s species. It is working to improve the everyday environments of our citizens and conducts programs that reach out to the community.

Tumamoc is a historical landmark that keeps on making history.

Directions:  Take St. Mary’s Rd. west of the freeway to Silverbell Rd. and turn left. Anklam Rd. is the first road on the right after St. Mary’s Hospital. View in Google Maps.


Botanist and plant pathologist Effie (Southworth) Spalding measuring a saguaro rib. An accomplished scientist, Effie worked at the Desert Botanical Laboratory of the Carnegie Institute (known today as Tumamoc: People & Habitats) from 1905-1911. She published the very first research paper done on Tumamoc in 1905. Her research showed that the ribs of saguaro cacti expand and contract as they store and use water.