Lots of extra events hosted by your Oro Valley Historical Society on Valentine's Day! Come on out to Steam Pump Ranch and discover all the things that OVHS has planned for you: America's Semiquincentennial exhibit, 9am-noon A kitchen supply donation drive supporting Gap Ministries, 9am-noon Guided nature walks beginning at 9:15am and 10:30am  AND New … Continue reading Hands-on Stone Tool–Making Demonstration at the Heritage Garden