Visit Lowell » General Information
Learn about the Discovery Channel Telescope
Visitors inside the Clark Telescope dome. Tom Alexander.

Visitors inside the Clark Telescope dome. Tom Alexander.

PROGRAMMING ALERT: The Clark Telescope is closed for renovation through mid-2015. Daytime Deep Space Tours will still go inside the dome when possible. In the evening, we will use the recently renovated 16-inch McAllister Telescope as our primary telescope for public viewing.

Peer through telescopes at night or visit the instrument that helped Clyde Tombaugh discover Pluto. Tour our facility with friendly, knowledgeable guides. Experience the Universe though widescreen multimedia shows, exhibits, live presentations, and SlipherVision, our new immersive space theater

Your visit here begins in the 6,500-square-foot Steele Visitor Center, where our team will get you started on your journey of exploration. In addition to our tours and multimedia shows, we offer traveling exhibits that rotate two to three times per year.

Come up and see us on Mars Hill, 1 mile west of downtown Flagstaff, Arizona. And welcome to Lowell Observatory.

IMPORTANT REMINDERS: Lowell is located at 7200'. You will want to pace yourself if you're not accustomed to the high elevation. Avoid becoming dehydrated by drinking plenty of water. Dress in layers; evenings can be cold, even in the summer. In the daytime, wear sunscreen to protect against sunburn. Please note that while people walk their dogs in the nearby forest and several employees who live on Mars Hill own dogs, only service dogs are allowed in the areas of campus open to public visitation. During the summer, certain buildings and facilities may be closed during sessions of our Kids Camp.

2015 Hours

Mon thru Sat
10 a.m. - 10 p.m.

10 a.m. - 5 p.m.

 Visitor Info


Covers day and evening programs; reservations not needed.

Adults: $12

Seniors, AAA, college students: $11

Ages 5–17: $6

Under 5: Free

Members: Free

For general questions about our day and evening programs, call the Visitor Center at (928) 233-3212 during open hours (listed below).

Groups of 15 or more are eligible for a group discount; to qualify, you must make reservations at least 3 weeks in advance. Contact Samantha Flagg by email or phone at 928-856-9484.

2015 Hours

Monday through Saturday
10 a.m. - 10 p.m.

10 a.m. - 5 p.m.

Arizona observes Mountain Standard Time year round.
Click here
for the current time in Flagstaff, AZ.

Special Closures in 2015

Jan 1, 2015 - Closed all day

Nov 26, 2015- Closed all day

Dec 25, 2015 - Closed all day