Bible scholar David Oberpriller leads a walk focusing on botany, history and scripture at 8:30 a.m., Saturday, June 20. Terry Mikep leads a guided tour through forested areas from 8:30 to 10:30 a.m., Sunday, June 21. A butterfly walk with Kurt Radamaker takes place from 9:30 to 11:30 a.m., Saturday, June 27. Dave Morris leads a walking tour focusing on edible and medicinal plants from 8:30 to 10 a.m., Sunday, June 28. Events are free with park admission: $7.50 adults; $3 ages 5 to 12; and free for younger than 5. Call (800) 285-3703, or visit azstateparks.com for more information.