A study of the native trees of Amador County

The region covered by this study reaches from the valley floor of the San Joaquin-Sacramento Valley, with an altitude of about 150 feet, to the top of the Sierra Nevada Mountains, whose peaks, in Amador County, reach to more than 9000 feet. Mokelumne Peak has an altitude of 9371 feet. The north and south distance, across the county at Ione, is 22 miles, while at Cook\u27s Station, it is barely 5 miles. Amador County has an area of about 600 square miles. Thus, a study of trees in this county, gives a fairly representative cross-section picture of the Sierras at this latitude of 39 degrees