The C.P. Gillette Museum of Arthropod Diversity was established in 1870, and includes approximately three million specimens representing about 60,000 species, and is the largest, most comprehensive arthropod collection in the Southern Rocky Mountain Region.
In addition to containing the Natural Resource Ecology Laboratory Soil Arthropod Collection, the C.P. Gilette collection serves as the repository for arthropod inventories from Canyonlands National Park, Great Sand Dunes National Park, Mesa Verde National Park, Rocky Mountain National Park, Dinosaur National Monument Yucca House National Monument, Colorado National Monument, and several military lands. The museum is located on the CSU campus, in Laurel Hall.
The museum loans specimens for up to 24 months, with renewals possible. All loans must be requested in writing. The collection is also available for in-house study.
The museum houses a library with approximately 1,200 books and 10,000 bulletins, reprints, and other literature related to arthropod systematics.
Equipment available to graduate students and systematists includes three Wild microscopes, one with a camera lucida, and one Leitz microscope.