Elevation ranges from 4,500 to 5,100 feet. Local weather with bimodal rainfall, including winter rains from Pacific systems and late summer monsoons from the Gulf of Mexico. Mean annual precipitation is 45cm. Capacity is about 9. Houses include modern kitchen and laundry facilities.
Users provide their own linen and food.
A well-equipped toolshop and assembly area are available. A nominal charge is required for housing. Copies of all publications from research conducted on the sanctuary are requested for the reserve library. Telephones are available. Biological, geological, and geochemical research is encouraged.