CHEYENNE, Wyo. — A renowned late-night talk show and vehicle enthusiast got to try his hands out in the cab of a Cheyenne-based locomotive. Comedian Jay Leno was recently welcomed by Union Pacific to check out the compartments of Big Boy No. 4014, which is currently chugging around the country for its “Heartland of America” tour. The engine started its tour in Cheyenne and will have public displays in Rochelle, Illinois; Houston, Texas; and Fort Worth, Texas.