There are 4 guest rooms at VATT, and it is self-catering, but there is an efficient kitchen and an outdoor barbecue. There are no stores on the mountain, so all food and supplies must be brought up to the VATT by observers.

Water is an expensive commodity at MGIO, so observers are asked to be conservative in their use of it. Electricity is also expensive, but heat is plentiful.

Observing is done from a warm room, so the observatory does not supply cold weather outer clothes for observers. It can get down into single digits Fahrenheit during winter nights, but this is unusual with low temperatures generally in the low 20's F. Be prepared for snow lying on the ground during winter months since the average total snowfall is 10 feet. Maximum summer daytime temperatures are in the 70's F for this mountain climate.

The phone number is 520-626-6365

Please note that there is no custodial service at weekends.