The Castle River drains the Castle Special Management Area north of Waterton Lakes National Park and empties into the Oldman River Reservoir west of Pincher Creek.

Dirt-Road, High Clearance Vehicle

Upstream of its confluence with the West Castle branch, the Castle River offers intimate wade-and-walk fly fishing for native cutthroat trout. Downstream of the West Castle confluence, near Castle River Bridge Recreation Area, the fish may be bigger, but so are the crowds.

A good river for spring kayaking.

From Provincial Highway 3, drive south from Burmis on Secondary Highway 507, then south on Secondary Highway 774 to Castle River Bridge Provincial Recreation Area. This is the best base point for exploring the river upstream towards Waterton Lakes National Park, or downstream to the Secondary Highway 507 bridge crossing.

Put-in where Secondary Highway 774 crosses the river, just south of Castle River Bridge Provincial Recreation Area. Continue the Class II paddle 7 km north to Castle Falls Provincial Recreation Area, a short drive north from Castle River Bridge Provincial Recreation Area.

The lower river paddling run starts below the falls at Castle Falls Provincial Recreation Area and continues for 20 km of Class II water to the take-out just past the high bridge carrying Secondary Highway 507 across the river.

For fishing upstream of Castle River Bridge Recreation Area, follow the Castle River Road, which at a parking area becomes the Castle River Trail.