Wyoming Infrared Telescope English 2.29 m f/2.1, 27 IR Cassegrain yoke
Jelm Mountain, WY 41[degrees] 06' N 105[degrees] 59' W 2,943 m Operational in 1977, this Wyoming Infrared Observatory instrument has a Cer-Vit primary mirror and is optimized for infrared observations.
Other activities included solar observing, software demonstrations, and a tour of Wyoming Infrared Observatory (WIRO) atop
Jelm Mountain (S&T: October 1999, page 90).