B2066 (USN65-00612)& B2058 (USN65-00614) are at the Western Railway Museum at Rio Vista Junction. These were acuired from the Concord Naval Weapons Station in January 1995. B2066 is used for the Spring Prairie Trains in unelectrified territory. The B2058 was obtained for parts. The B2058 is the infamous engine that cut off an anti war protestors legs at Concord NWS in the 1980's.
You'll find photographs of these two engines (by Gregg Fuhriman) at Shane Deemers site ath the address http://unixstew.tstc.edu/~1sgd6508/olocos.htm.