The Katy Trail is a bike trail from Downtown Denton to Corinth, about 8.3 miles long.

It was built as a crushed gravel aggregate hike and bike trail in the late 1990s on the abandoned rail line. When the Denton County Transit Authority began construction of the A Train rail line, the Rail Trail was closed. Now that construction of the rail line is complete, the Rail Trail has reopened as an 8 ft wide paved walking and bike path. DCTA also has long term plans to build a pedestrian bridge across Lake Lewisville, extending the Rail Trail into Lewisville and connecting with the DFW Veloweb.