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Biosphere 2–The University of Arizona

Located in: Pinal County


32540 S. Biosphere Rd.
Oracle, AZ 85623
United States

Phone: 520-838-6200

Fax: 520-838-6162

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  • Green Business
  • Mexico Ready

Visit Biosphere 2 today and find out why Time Life Books named it “One of the 50 must-see wonders of the world!” Three New Themed Tours take you inside the world's largest living research center focused on future life of our planet. Experience the new "Under the Glass" classic, amazing "30 Year History" or engaging "Family " tour.  Highlights of this immersive experience include a new feature movie, multi-media exhibits and a uniquely built indoor trail system with your tour led by a knowledgeable guide. Biosphere 2 is the size of 3 football fields and has a $200 million dollar replicated mini-world.  Beneath 6,500 panes of glass lives a rainforest, million gallon ocean, coastal fog desert, technology grid and much more.  Located at a very scenic cool elevation of almost 4,000 feet at the base of the Tucson Catalina Mountains. Check out our Bookstore & Cafe. Just 20 minutes north of Tucson and 90 minutes south of Phoenix.  Guided adventure tours offered daily! Visit or call (520) 621-4800 OPEN DAILY 

  • TripAdvisor Traveler Rating
    Based on 1013 reviews
  • #2 of 9 things to do in Oracle
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Interesting tour and location

This place has a lot of interesting history and is even more interesting to see in person. It's not a Disneyland-type of place. They are sharing the information about the long-term research they are...

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More interesting history.

Went there last week on a hot summer day. Interesting to see conditions when biosphere was first intended. Now used for experiments by school who maintains it. A very expensive endeavor which is...

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learning with the grand kids

We were amazed at the science that is going on at this facility..we remembered the early experiments with a team of scientists locked in the venue, and we were interested to see the various habitats...

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  • Wheelchair Accessible

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