Narrower Terms (12)

• Alcova Limestone (Wyo.)
• Almond Formation (Wyo.)
• Bearpaw Formation
• Blair Formation (Wyo.)
• Colter Formation (Wyo.)
• Green River Formation
• Lance Formation (Colo. and Wyo.)
• Leidy Formation (Wyo.)
• Meade Peak Member (Idaho and Wyo.)
• Rock Springs Formation (Wyo.)
• Steele Shale (Wyo.)
• Wind River Formation (Wyo.)