Preliminary Report on Oil-shale Resources of Piceance Creek Basin, Northwestern Colorado

Description of the Potential Oil Yield of Tertiary Lacustrine Shales in the Green River Formation in an Area of about 1,400 Square Miles North of the Colorado River and South of the White River

by Allen Van Heyl, Clyde Polhemus Ross, Dorothy McKenney Schlegel, Frank C. Armstrong, George Albert Thompson, James Trumbull, John Roswell Donnell, Lincoln Dryden, Richard Porter Sheldon, Robert Barton Guillou, Rollin C. Vickers, Jewell J. Glass · 1956