From the Tucson Airport
Upon leaving the airport, proceed straight (north) on Tucson Boulevard, following the signs
to Interstate 10 West. Take I-10 West to the Ina Road Exit, about 13 miles. Turn right onto
Ina Road; go east about 6 miles to North Oracle Road. Turn left onto Oracle Road/Highway 77
and proceed north through Oro Valley, Catalina and when in Oracle Junction, take the right fork,
which will be Highway 77. On Highway 77 drive 6 miles to the Biosphere 2 Center turnoff, located
at Mile Marker 96.5.
From the Phoenix Airport
Upon leaving the airport, follow the signs to Interstate 10 East. Take I-10 East,
towards Tucson, to the Tangerine Road Exit, about 20 miles north of Tucson. Turn left
onto Tangerine Road, then go about 15 miles east to North Oracle Road. Turn left onto
Oracle Road/Highway 77 and proceed north through Catalina and when in Oracle Junction,
take the right fork, which will be Highway 77. On Highway 77 drive 6 miles to the
Biosphere 2 Center turnoff, located at Mile Marker 96.5.
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