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Abstract...
Introduction, by A. M. Piper.___.
Location and general features of the Mokelumne area....
Nature of the problem-----
Natural and regulated regimens of the Mokelumne River___.
Scope of the investigation and report...----
Geology, by H. S. Gale, A. M. Piper, and H. E. Thomas_
Geomorphology –.
California Trough.......
Delta plain..
Victor alluvial plain....
River flood plains and channels..
Arroyo Seco dissected pediment_
Sierra Nevada section_...
Geomorphic history...
General features..
Laguna epoch..........
Major deformation of the Sierra Nevada....
Arroyo Seco epoch....
Victor epoch----
Recent epoch----
Structural divisions of central California..
Sierra Nevada block..
California Trough...
Coast Ranges-_- - - -
Stratigraphy of the Mokelumne area and adjacent region.......
Age and general distribution of the rocks..
Quaternary system---
Recent series___
Pleistocene series___
Victor formation___.
Arroyo Seco gravel..........
Gravel deposits of uncertain age...
Tertiary system___
Laguna formation (Pliocene ?) - - -
Mehrten formation (upper? Miocene and Pliocene ?).
Valley Springs formation (middle ? Miocene)...
Ione formation (Eocene) ...
Unnamed gray shale and sand (Eocene).
Cretaceous system...
Pre-Cretaceous crystalline rocks.
General data from wells___
Sources and classes of data...
Methods of investigation....
Character of the sediments..
Selected records of wells in the Mokelumne area.