Skip to main content

Dakota Group

Dakota Group of east-central and northeast New Mexico; in ascending order, Mesa Rica Sandstone, Pajarito Shale, and Romeroville Sandstone; includes the underlying Tucumcari Shale in Tucumcari area and Glencairn Formation in Union County. Encompasses both Upper and Lower Cretaceous rocks
State New Mexico
Name Dakota Group
Geologic age Phanerozoic | Mesozoic | Cretaceous
Primary rock type sandstone
Secondary rock type medium-grained mixed clastic
Other rock types
Lithologic constituents
Map references
Anderson, O.J., Jones.G.E., and Green, G.N., compilers, 1997, Geologic map of New Mexico: U.S. Geological Survey Open-File Report 97-52.
Unit references
Anderson, O.J., Jones.G.E., and Green, G.N., compilers, 1997, Geologic map of New Mexico: U.S. Geological Survey Open-File Report 97-52.
Counties Colfax - Guadalupe - Harding - Lincoln - Mora - Otero - Quay - San Miguel - Santa Fe - Socorro - Taos - Union