Dr. B.D. Dillon, Consulting Archaeologist No description specified. 1-2 (2 Records) Documents Archaeological Survey of the Proposed Summit Level Timber Harvest Plan; a 360 Acre Parcel in Calaveras County, California (1993) Archaeological Survey of the San Antonio Creek Timber Harvest Plan; a 980 Acre Parcel in Calaveras County, California (1993)