Title Page

Table of Contents

In Memoriam

List of Advertisers

Greetings

WGA Officers and Field Conference Committee

Stratigraphic Chart

PETROLEUM

Amos Draw Field, Campbell County, Wyoming – by William F. Von Drehle

Geology and Engineering Aspects of Buck Draw Field, Campbell & Converse Counties, Wyoming – by C. M. Hawkins and S. Formhals

House Creek Field; Past and Future – by J. M. Sabel

Meeteetse Field, Bighorn Basin, Wyoming – by Roger G. Wolff and Robert W. Roy

STRUCTURE

Stress Analysis of the Casper Mountain – Emigrant Gap Anticline Juncture, Natrona County, Wyoming – by William C. Beck and Arthur E. Burford

Tectonism in the Mid-Cretaceous Foreland, Southeastern Wyoming and Adjoining Areas – by E. A. Merewether and W. A. Cobban

STRATIGRAPHY AND SEDIMENTATION

Grieve Paleovalley of the Muddy Sandstone in the Eastern Wind River Basin, Wyoming – by William H. Curry III

Lower Cretaceous Paleogeography, Big Muddy-South Glenrock Area, Southwest Powder River Basin, Wyoming – by W. R. Merschat

Deltaic Systems in the Early Cretaceous Fall River Formation, Southern Powder River Basin, Wyoming – by Donald L. Rasmussen, Connie J. Jump and Katherine A. Wallace

Lewis Shale, South-Central Wyoming: Shelf, Delta Front, and Turbidite Sedimentation – by Robert D. Winn, Jr., Michele G. Bishop and Paul S. Gardner

Depositional Patterns and Unconformities, Upper Cretaceous, Eastern Powder River Basin, Wyoming – by Robert J. Weimer and Akiva Flexer

HYDROLOGY

Hydrodynamic Flow in the Lower Cretaceous Muddy Formation, Northeast Powder River Basin, Wyoming and Montana – by R. R. Berg, G. M. Larberg and L. D. Recker

PALEONTOLOGY

Reptilian Markings on the Upper Mowry Shale Emigrant Gap Area, Natrona County, Wyoming – by Arthur E. Burford

Nonmammalian Vertebrate Faunas from the Late Cretaceous of Wyoming – by Brent H. Breithaupt

ROAD LOGS

Road Logs