Grand Campment-4 is a backcountry campsite located along the Ontario Temiskaming Heritage Trail (OTHT) near Owain Creek, in the South Timiskaming Shoreline area of Ontario.

It sits within or adjacent to the Grand Campment Bay area, a stretch of Lake Temiskaming shoreline known for its scenic views, diverse beaches, and fossil-bearing shoreline.

The surrounding conservation reserve offers a mix of rugged cliffs, lookout points, and varied shoreline ideal for hiking, birdwatching, photography, and nature study.

The Red Trail, documented on the Owain Creek Trails map, passes through the area and connects the broader network of routes used by hikers and trappers alike.

Access to the trailhead is via a lengthy, rough dirt road off Rabbit Lake Road, making this a genuinely remote destination suited to experienced backcountry travelers.