29 September 1983.
California, United States
Locality: Near Danville, CA, in Contra Costa County on Blackhawk Road, where stone fence begins just past where Mt. Diablo Rd. splits off to go up to the park. 2120 Blackhawk Rd. on south side of park.
Comment: A huge tree, about 15' in circumference. The land owner adjacent (Mr. Middletown) said it's the biggest one he has seen left in the area.
Collector(s):