Narrower Terms (15)

• Belden Formation (Colo.)
• Creede Formation (Colo.)
• Denver Formation (Colo.)
• Eagle Valley Formation (Colo.)
• Florissant Formation (Colo.)
• Fruitland Formation (Colo. and N.M.)
• Green River Formation
• Honaker Trail Formation
• Lance Formation (Colo. and Wyo.)
• Maroon Formation (Colo.)
• Minturn Formation (Colo.)
• Paradox Formation
• San Jose Formation (N.M. and Colo.)
• Wanakah Formation
• Williams Fork Formation (Colo. and Utah)