USA Today put together a roundup of 10 train trips that take you through leafy landscapes. Here are three and read the full story to find out about all 10. Cumbres & Toltec Scenic RailroadChama, N.M.America’s highest and longest steam narrow-gauge railroad starts in northern New Mexico, and climbs over a 10,000-foot pass, covering 64 miles before ending in Antonito, Colo. “You’ve got tremendous steep grades and you can hear the chugging,” Heimburger says. “You almost feel like you’re in the engineer’s seat, struggling your way up these mountains.” 877-890-2737; cumbrestoltec.com Western Maryland Scenic RailroadCumberland, Md.The 32-mile route through rugged Appalachian scenery passes through the Narrows, a mountain cut that…