| Articles History and minerals of The Geysers, Sonoma County, California .....................................the Wessels mine, South Africa ............365 by J. Gutzmer & B. Cairncross The Parker mine, Notre Dame...1852 to the 1920’s, is located in northern Sonoma County about 145 km north of San Fran cisco, California...The Geysers can be reached by taking Alexander Valley Road off the Redwood Highway (U .S. 101) about...several of these —many in fact— here a boiling spring, there a hole in the ground from which steam issues |
