- Olympic National Park, Hoh Valley, ¼ mile west of Hoh Ranger Station on north side of road1
- Ontonagon1
- Oregon1
- Pennsylvania1
- Pitkin1
- Plumas1
- Pocahontas1
- Portage River, near the Columbia1
- Prince Edward Island1
- Prince Edward Island; also in Eagle River below Griffin Lake, British Columbia1
- Quincy1
- Resolution Island1
- Restigouche1
- Roaring Fork River, Independence, circa 17 miles southeast of Aspen1
- Rock Harbor, Isle Royale, Lake Superior shore1
- Sandstone Falls near mouth of Black River1
- Skeena-Queen Charlotte1
- Sound Country, Green River gorge1
- Southwest Coast, 56.6 km north of Port-aux-Basque on Hwy 1, at Crabbes River Crossing1
- Ten Mile Creek, New Denver1