

All are part of Oregon Islands National Wildlife Refuge, and closed to public access. A number of dark, jagged, steep sided rocks are accessible at low tide and there are more out to sea, one quite large, supporting grass and succulents. The private land opposite Mack Reef extends for 2 miles, up to the north boundary of Samuel H Boardman State Scenic Corridor, a long, thin preserve that continues most of the way to Brookings.Ī small stream ( Sand Creek) flows across the far south end of the beach, shortly before the cliffs of Crook Point rise up ahead. Another reason for the limited visibility is that the arch is oriented east-west, so the opening is only properly visible from the north or south. The arch is not visible from US 101 as by now the highway is running some way inland, separated from the ocean by a privately-owned belt of forest and bluffs, and Crook Point itself is also off-limits, being a protected wildlife habitat, though the arch can be seen by walking and climbing round the base of the cliffs at the point, at low tide. This is Mack Reef and it contains one of the most iconic features of the whole Oregon coast, Mack Arch, which is the largest sea arch in the state, a shapely monolith with an opening 130 feet across. Another, more scenic and isolated set are found just beyond the south edge of the state park at Crook Point, while even further south are more, larger rocks, half a mile out to sea.

Most of the beach is within Pistol River State Park, and scattered along the coast are an assortment of differently-sized sea stacks, all on the north side of the river. The majority of the land along the south end of Oregon's Pacific coast is steep and wooded, restricting access to the shore, and for 25 miles between Gold Beach and Brookings, US 101 passes only one significant beach, either side of the Pistol River, where the sands stretch for over 3 miles, south of the sheer-sided Cape Sebastian.
