Cardwell Bridge Fishing Access Site offers a gravel boat ramp and toilet facilities for day-use access to the Jefferson River, located 1 mile south of Cardwell on Highway 359. The 5.

5-acre site is open year-round and serves as an ideal launch point for both fishing and paddling, with the scenic canyon section downstream featuring limestone cliffs and minimal road intrusion.

A conservation license is required ($8 for Montana residents, $10 for nonresidents).