Colorado or Colorados Formation may refer to:

Argentina[edit]

• 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[edit]

• 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 Middle Magdalena Valley § Third sequence
• Colorado City Formation, a Late Triassic geologic formation of Texas

See also[edit]

• Chinle Formation, on the Colorado Plateau, southwestern United States