Twin Falls Magic Valley Cowboys - Idaho - Vintage Defunct Baseball Teams - Unisex T-ShirtMagic Valley's Cowboys brought Pioneer League baseball to Twin Falls, Idaho, beginning in 1952 as a Class C club. Small town minor league teams like this were the backbone of baseball's farm system in the postwar years. They gave rural communities a reason to gather under the lights on summer nights. Part of our Defunct Baseball collection, inspired by the vintage Minor League teams of yesteryear. The Details: Arched golden yellow serif text reads