Lowell Observatory

Hidden away at the top of Mars Hill in Flagstaff, Arizona, Lowell Observatory is a place where modern scientific history was made. From old telescopes and scientific instruments, to the immersive displays, to the lectures about Pluto’s discovery, this place is undoubtedly one of the most immersive places in Arizona for people of all ages.

Clark Telescope Building at Night

All of Lowell Observatory at night is aglow in red lighting to help people see. Red wavelengths of visible light scatter the least - helping to prevent interference with the telescopes.

Looking to make a stop at Lowell Observatory? I would highly recommend making it a full-day visit. Visit all the buildings, attend lectures and tours, visit Lowell’s mausoleum, and capture the beauty of the city of Flagstaff from Mars Hill before sunset. Then, explore the various exhibits and look through the different telescopes in their outdoor and indoor displays, especially the historic Clark Telescope!

If you are unable to visit for a full day, arriving around sunset will allow you the most amount of time to make your rounds and visit every building, as well as see through all of the telescopes at the outdoor display.

Like any observatory, try to arrive on a pleasant clear night, as this gives you the best chances of seeing through all the telescopes. However, this is a great place to visit either way due to its historic artefact displays, enriching lectures, and interesting exhibits, all nested on a beautiful hill.

Here is a map of the compound:

Lowell Observatory Map:

Here is a map of the various locations that are a part of Lowell Observatory. They have many displays and telescope set-ups, so be sure to check them all out! It is possible to cover everything in a one-day visit.