Whitney Development Company No description specified. 1-2 (2 Records) Documents Archaeological and Historical Resources Survey of the Greenley Road Extension, Sonora Crossroads Project, Sonora, Tuolumne County, California (1993) Cultural Resources Monitoring at CA-TUO-2842 / H; the Old Sanguinetti Ranch; Sonora Crossroads Project; Tuolumne County, California (1993)