- Lochsa River, Clearwater National Forest, 9 miles northeast of Lowell1
- Marble Hill Road, W, of Chilliwack, near trout farm1
- Marin1
- Mendocino1
- Mount Hamilton, along Smith Creek near summit road1
- N. Side of Gray Bay, NE Moresby Island, Queen Charlotte Island1
- Near Leaburg1
- Near Point Reyes Station1
- Near Sidney, Vancouver Island, British Columbia1
- Near Stevens Grove1
- Olympic National Park, East Fork Quinault River, near Graves Creek Ranger Station.1
- Port Angeles1
- Queenswood1
- Redwood Creek, Muir Woods National Monument1
- Salem1
- San Mateo1
- San Mateo Mountains, west of Stanford University1
- Seattle, Near Meadowbrook, north of Seattle1
- Skamania1
- Snohomish1