FLWO Visitors Center

In light of recent public health and safety concerns, Whipple Observatory is closed to the public until further notice. There is no access to the Observatory site during this closure, and we are not conducting tours at this time.

Please keep in mind that there is no public access past the gate at the 13km point. There is no public automobile, bicycle or foot traffic of any kind after this gate for any reason.

Public programming for the Observatory is being conducted virtually at this time. You can see upcoming events on Facebook with or without an account, or you may sign up to receive our newsletter.

Located at the base of Mt. Hopkins in the Santa Rita Mountains, 56 kilometers (35 miles) south of Tucson and just within the boundary of the Coronado National Forest, the Fred Lawrence Whipple Observatory Visitors Center features displays and exhibits on astronomy and astrophysics, natural science, and cultural history.

Public Access

The Whipple Observatory Visitor & Science Center is currently closed to the public due to recent public health and safety concerns. There is no public access to the Observatory at this time.

There is no public access past the locked gate at the 12km mark on Mt Hopkins Road. No hikers, cyclists, or vehicles are allowed past this point. Please plan day trips to the area accordingly, and plan to access marked trails below the locked gate. There is absolutely no walking on Mt. Hopkins Road past the locked gate, nor are public bicycles or vehicles of any kind allowed on the road.


Exhibits include models of the original 4.5-meter and converted 6.5-meter Multiple Mirror Telescope, a three-dimensional model of galaxy distribution in the universe, and a touchable topographical map of the Santa Rita Mountains. Other displays trace the history of optical telescope development from Galileo to the new instruments planned for the 21st Century, recount the many Smithsonian research projects in Arizona during the past century, and describe current investigations in gamma-ray astronomy. A natural history exhibit examines those animals active in the nighttime, and features a large color transparency of the night sky over southern Arizona.

All exhibits and public areas are accessible; and, major exhibit titles have been translated into Spanish. (A full-text, bilingual guide to selected exhibits is available.)

In addition to the interior exhibits, the Visitors Center complex includes an outdoor patio with a Native American petroglyph discovered on site during construction, interpretative signage describing desert flora, and stunning views of the surrounding Santa Rita Mountains.

Two spotting devices, a 20-power telescope with an individual adjustable focus and a set of wide-field binoculars with automatic focusing, are installed on the outdoor patio of the Visitors Center. Manufactured by SeeCoast, Inc. and acquired through a Smithsonian Institution Special Exhibition Fund grant, the telescope and binoculars allow public visitors to capture close-up views of the MMT Observatory on the distant summit of Mt. Hopkins, as well as to view natural features of the surrounding Santa Rita Range of the Coronado National Forest and to see the telescopes of the Kitt Peak Observatory located some 50 miles to the west. Most important, the binoculars are mounted on a wheel-chair-accessible base. The addition is the latest in a series of features incorporated into the Whipple Observatory Visitors Center designed to make the facility accessible to broader audiences. For example, a rest and recreation area at the entrance to the site has a ramp leading to a wheel-chair accessible picnic table and cook-stove as well as rest rooms; and, a major part of its nature trail has a hardened surface. Presentation videos are open-captioned; and, for guests from nearby Mexico, a guide to exhibit and display text is available in Spanish.

The wheel-chair-accessible binoculars at the Whipple Observatory Visitors Center have also proven very popular with small astronomers.

Open Hours

A trailhead, rest rooms, and picnic area developed by the Forest Service and located just outside the main gate are open 24 hours a day. There are benches, grills, and a hardened path that leads to vantage points overlooking Montosa Wash, a deep drainage running parallel to the site. A kiosk at the trailhead provides information about camping and hiking as well as other public programs. (The rest rooms and one picnic area are designated as accessible.) The picnic area is a perfect stopping-off spot for tours of other Arizona attractions, including Tumacacori National Historic Park, the San Xavier Mission, Tubac Presidio State Historical Park, or Nogales. Amateur astronomers are invited to bring their telescopes to the "Astronomy Vista," a special observing site with concrete pads and benches along a knoll at an elevation of 1524 meters (5000 feet) approximately 2 kilometers (1.2 miles) east of the Visitors Center on a paved road. Here, within sight of the Multiple Mirror Telescope, amateurs may take advantage of the same clear, dark, Arizona skies so important to professional astronomers. (Access to telescope pads requires climbing a short, but somewhat steep, unpaved trail.)

Touring the Observatory

Tours of Whipple Observatory are suspended at this time due to public health concerns. A public announcement will be made when tours resume.

Health Notice

The summit elevation of Mount Hopkins is 8,550 feet (2,606 meters). Persons with health problems affected by high altitude should consult their physician beforehand. Some uphill walking, stair climbing, and standing for 15-20 minutes at a time are required in the course of the tour.

The road from the office to the summit is a 10-mile, single-lane dirt road with few guard rails. Person unaccustomed to mountain roads of this type should consider this trip carefully.

Tour Rates

  • Price: $15 per person
  • Gift certificates available
  • Payment due at time of reservation/purchase

We do not accept discount vouchers or Smithsonian memberships for tours.

Private tours are available at the following rates:

  • 4-7 people: $35.00 per person, Tuesday and Thursday only
  • 8-14 people: $45.00 per person, Tuesday and Thursday only
  • 15-30 people: $450 flat group fee

There is no charge for schools, youth educational programs and scouting groups.

All private groups, schools, youth educational programs, and scouting groups must coordinate tours with Amy Oliver, Visitor & Science Center Manager prior to reservation/purchase.

Whipple Observatory accepts payments in the form of cash, and credit cards bearing VISA, Discover and Mastercard. We do not accept checks or American Express.