25 juin 2019
Albert Everett Wieslander, « Three miles W. of Camptonville. Conifer type where young and old trees about equal proportion in mixture. Species type: Pinus ponderosa, Pseudotsuga taxifolia, Quercus kelloggii. Assoc. spp.: Arbutus menziesii. (Air photo 119-58) », Berkeley Library Digital Collections, ID : 10670/1.tyezmn