Entrance is a unincorporated group in Cochise County, Arizona, United States. It lies 25 miles 40 km south-southeast of San Simon and at the mouth of Cave Creek Canyon on the east side of the Chiricahua Mountains.
The people group is a prevalent area for birding in southeastern Arizona. It is additionally home to the American Museum of Natural History Southwest Research Station. The essayist Nancy Farmer and her better half are occupants.
Commonplace of upland Arizona, Portal has a semi-dry atmosphere Köppen BSk with warm to hot days took after by and large by very cool evenings. Visit ices in winter offer approach to mellow days, while most rain originates from summer storms.