Dan Rodricks: Cutting mighty trees in a popular Maryland park for a bridge? Must be a better way.

Swallow Falls State Park, in western Maryland, has the cascading Youghiogheny River, the state’s tallest waterfall, old-growth hemlocks, hiking paths and cross-country ski trails. It’s a popular destination for visitors from throughout the region, including white-water kayakers and people who appreciate mighty, centuries-old trees.