The Gulf Prairie Run of the Stephen F. Austin Trail on the Brazos River is a 9.8 mile segment from FM 2004 in Lake Jackson to Highway 288 in Freeport, across the street from the Freeport Municipal Park and Police Station. The trail unfolds over one of the most incredible ecological systems in our region, where the historic Brazos River winds through the dense, wet Columbia Bottomlands. This lush world of towering trees, palmetto thickets and flowering plants supports a multitude of wildlife species and provides a critically important stopover habitat for migrating birds. Launch options: the FM 2004 boat ramp in Lake Jackson or the Brazos River Boat Ramp in Freeport. The Brazos River Boat Ramp in Freeport is directly across the street from the Mystery Shrimp Boat Monument near the police station and across the levee. Follow shell road to boat ramp.