Colorado or Colorados Formation may refer to:
Argentina Colorado Formation, Argentina, a Campanian geologic formation of La Pampa Province Los Colorados Formation, a Triassic geologic formation of La Rioja and San Juan Provinces Los Colorados Formation, Paleogene, a Paleogene geologic formation of Salta Province; see Salta Basin Quebrada de los Colorados Formation, an Eocene geologic formation of Salta Province; see Salta Basin Cañón del Colorado Formation, an Early Jurassic geologic formation of San Juan Province Río Colorado Subgroup, a Late Cretaceous geologic subgroup of Neuquén and Río Negro Provinces
Elsewhere Colorado Group, a Late Cretaceous geologic unit of the United States and Canada Cerro Colorado Formation, an Early Cretaceous geologic formation of Chile Colorado Formation, Colombia, an Oligocene geologic formation of Colombia; see
Colorado City Formation, a Late Triassic geologic formation of Texas
See also Chinle Formation, on the Colorado Plateau, southwestern United States