This report deals with an area of approximately twenty-six square miles, comprising parts of the Saugus, Newhall, Sylmar and Humphries quadrangles mapped by the United States Geological Survey. It is essentially bounded by Bouquet, Placerita, Soledad, and Mint Canyons. The aettlements ot Saugus-Pardee, Honby, Solamint, St. Johns, and Forest Park are included within these boundaries. [There was no "Canyon Country" in 1948 — Ed.]

The eastern part of the Ventura Basin has aroused the interest of geologists, professionals and amateurs alike, for almost one hundred years. Much of this attention has stemmed from the discovery of small deposits of gold, and the completion of a few producing oil wells within the area. Of more academic interest are some problems presented by the stratigraphy and paleontology of the region. These questions have been debated at length by Stirton, Maxson, Kew, Jahns, and others. References to these discussions are provided in the bibliography.

3 color maps below are part of Dort's thesis paper.