Tonto Basin Public Library Tonto Basin Public Library P.O. Box 368415 Old Hwy 188Tonto Basin, AZ 85553928-479-2355Our summer hours:Mon – Wed: 8am – 5pmThur – Fri: 8am – 4pm Monthly Calendar Tonto Basin Public Library, 415 Old Hwy 188, Tonto Basin, AZ 85553, USA Type : Standing No description available Upcoming Events No upcoming event found.