@ Castle Rocks State Park/Almo, Id.  Experience the splendor and solitude of Castle Rocks from horseback. This ranger-guided trail ride will take participants around the geologic area to dramatic vistas. The group will meet back at the Ranch House for and "Old West" catered dutch oven lunch. Participants may bring their own horse or make prior arrangements to rent one from Indian Grove outfitters in Almo. Space is limited and reservation is required. Fee is $20. per person.