Douglas M. Morton
Geology of parts of the Azusa and Mount Wilson quadrangles, San Gabriel Mountains, Los Angeles County, California
Landsliding and mudflows at Wrightwood, San Bernardino County, California
A debris avalanche at Forest Falls, San Bernardino County, California, July 11, 1999
Geologic map of the Cucamonga Peak 7.5-minute quadrangle, San Bernardino County, California
Geologic map of the Devore 7.5-minute quadrangle, San Bernardino County, California
Geologic map of the Elsinore 7.5-minute quadrangle, Riverside County, California
Geologic map of the Romoland 7.5-minute quadrangle, Riverside County, California
Geologic map of the Steele Peak 7.5-minute quadrangle, Riverside County, California
Geologic map of the Telegraph Peak 7.5-minute quadrangle, San Bernardino County, California
Mineral resources of the Mecca Hills Wilderness Study Area, Riverside County, California
Peninsular Ranges batholith, Baja California and southern California