Isopach map of interval between top of the Pictured Cliffs Sandstone and the Huerfanito Bentonite bed of the Lewis Shale, La Plata County, Colorado, and Rio Arriba and San Juan counties, New Mexico /

Bibliographic Details
Corporate Author: Geological Survey (U.S.)
Other Authors: Sandberg, Dorothy T.
Format: Government Document Map
Language:English
Published: Reston, Va. : The Survey ; 1986.
Series:Miscellaneous field studies ; map MF-1831.
Subjects:
Description
Item Description:Relief shown by spot heights.
Includes text, bibliography and 2 index maps.
Sheet 2: "Cross sections of well logs showing isopached interval along A-Aʹ and B-Bʹ."
Cartographic material.
Physical Description:1 map and 1 data sheet ; 83 x 93 cm. on sheets 100 x 104 cm. and 136 x 95 cm. folded in envelope 30 x 24 cm.