Tonalite stock and sill at Cumberland Pass (early Tertiary to Late Cretaceous?
KfFossil Ridge Latite (Late Cretaceous) KuSedimentary rocks, undivided (Upper Cretaceous) (this value does not appear in the data) KdDakota Sandstone (Upper Cretaceous) JmMorrison Formation (Upper Jurassic) (this value does not appear in the data) JjJunction Creek Sandstone (Upper Jurassic) JmjMorrison Formation and Junction Creek Sandstone (Upper Jurassic) PgGothic Formation (Middle Pennsylvanian) PbBelden Formation (Middle Pennsylvanian) MlLeadville Limestone (Lower Mississippian) MDc