For those who say Arizona has no history, Todd Bostwick would like a word with you. The senior research archeologist at PaleoWest Archaeology and executive director of the Verde Valley Archaeology Center in Camp Verde, Bostwick has been working in the field for more than 40 years. So he's got some history — including multiple degrees and a résumé that is, no joke, 12 pages long. How does a guy acquire such an extensive portfolio in a field that would drive the not-so-meticulous insane? Well, unlike most of us, Bostwick has had a passion for his current field since childhood. Long before the days of Indiana Jones, Bostwick was digging up century-old toys he found in the yard of his parents' Nevada home.Lucky for Phoenix, Bostwick enjoys sharing his archeological finds (his specialties are rock art and ancient astronomy) with others, even going so far as to do house calls (assuming you've found ancient treasures in your backyard). Alongside his more technical published works, Bostwick has published informational books that are more conducive to the everyday amateur scientist, including Landscape of the Spirits: Hohokam Rock Art at South Mountain Park and Beneath the Runways: Archaeology of Sky Harbor International Airport.And though he recently retired from the city of Phoenix after serving as city archaeologist for more than 20 years, Bostwick admits he'll never truly stop digging. See a slideshow here.