Oracle is a small,
mountain town on the northeastern slopes of the Catalina
Mountains, known as a health resort, mining and ranching
Oracle is home to
Biosphere 2, which is a glass and steel structure that encompasses
five biomes; rainforest, ocean, savannah, desert and marsh.
Biosphere 2 is a learning, teaching and research center for
determining an ecosystem's ability to recycle air, water and
nutrients in order to sustain plant and animal life.