Palo Duro Canyon State Park has a past marked by erosion, fossils and evidence of ages gone by, but perhaps the most significant feature of the canyon is its impact on our Panhandle heritage. ?The Natual Wonders of Texas; Palo Duro Canyon? is a documentary produced by KACV-TV in Amarillo, Texas. It captures the beauty, history and the cast of characters whose influence flows through the canyon then and now.