- Vermont2
- Virginia2
- West Virginia2
- near Neys Provincial Park, 17 miles west of Marathon2
- (probably Nevada) Virginia City1
- Abajo planting project, Calichoza trail, south of Arecibo1
- Adair1
- Agronomy Rd., U. B. C. Campus, near junction with Westbrook Cres., Vancouver1
- Alameda1
- Albert1
- Along Hwy. 14, 3 miles SE of Richland Center1
- Along Ophir Creek near R.R., Yakutat1
- Along South Fork of American River and Highway 50, 4 miles east of Whitehall1
- Along road to crater from St. Helena Inn at summit of Highway 29 on Mt. St. Helena1
- Along trail to the caves in Pinnacles National Monument1
- Amygdaloid Mill, Delaware1
- Angeles National Forest, Mt. Waterman Trail1
- Angeles National Forest, Twin Peak Trail1
- Ann Arbor1
- Ann Arbor, near1