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Kitt Peak National Observatory: Window to the Universe

Explore the cosmos at Kitt Peak National Observatory: daytime tours, nighttime stargazing, and breathtaking views atop the Quinlan Mountains.

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Kitt Peak National Observatory, located 56 miles southwest of Tucson, Arizona, offers a captivating journey into the cosmos. Perched atop the Quinlan Mountains on Tohono O'odham Nation land, it boasts one of the world's largest collections of optical and radio telescopes, inviting visitors to explore the wonders of the universe through daytime tours and nighttime stargazing programs.

A brief summary to Kitt Peak National Observatory

Local tips

  • Arrive with a full tank of gas, as there are no gas stations on Kitt Peak.
  • Bring a jacket or sweater, as the temperature at the summit is typically 15-20°F cooler than in Tucson.
  • Make reservations for daytime tours and nighttime programs in advance, especially during peak season.
  • Be aware of the high altitude (nearly 7,000 feet) and take it easy, especially if you have any health concerns.
  • Check the weather forecast before you go, as winter storms can temporarily close the mountain road.
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Getting There

  • Driving

    Kitt Peak National Observatory is located approximately 56 miles (90 km) southwest of Tucson. From Tucson, take State Route 86 (Ajo Way) west for about 37 miles to the junction with State Route 386. Turn left onto SR 386 and follow it for 12 miles to the summit. The road is paved and well-graded, but it is a mountain road with curves and steep sections. Allow at least 90 minutes driving time from downtown Tucson. There is free parking available near the Visitor Center. Note that RVs are not allowed to park overnight.

Unlock the Best of Kitt Peak National Observatory

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Discover more about Kitt Peak National Observatory

Kitt Peak National Observatory (KPNO), established in 1958, stands as a beacon for astronomical research and public engagement. Situated on the Tohono O'odham Nation, 56 miles southwest of Tucson, Arizona, the observatory is home to a diverse array of telescopes, making it one of the most significant astronomical sites in the northern hemisphere. KPNO was founded to provide astronomers across the United States with access to state-of-the-art observing facilities. Today, it hosts over two dozen optical and radio telescopes, each contributing to groundbreaking discoveries about our universe. Visitors can explore select telescopes during guided daytime tours, including the Mayall 4-meter telescope and the McMath-Pierce Solar Telescope. The McMath-Pierce Solar Telescope is being transformed into the Windows on the Universe Center for Astronomy Outreach. The visitor center serves as a gateway to understanding the science and history of Kitt Peak. Exhibits showcase the workings of telescopes and the nature of light, while the gift shop offers astronomy-related souvenirs and Tohono O'odham crafts. For an immersive experience, the Nightly Observing Program allows visitors to observe stars, planets, and galaxies through research-grade telescopes. Kitt Peak's location on the Tohono O'odham Nation adds a unique cultural dimension to the observatory. The land is leased from the tribe, and the observatory acknowledges the indigenous heritage of the area. This collaboration highlights the intersection of scientific exploration and cultural preservation, making Kitt Peak a truly special destination.

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