Developments in the Cenozoic volcanic stratigraphy of the Indian Peaks area, northern Black Range, New Mexico
— Viki A. Lawrence

The Indian Peaks in the northern Black Range are an erosional remnant of a dome–flow complex of Taylor Creek Rhyolite. The rhyolite dome–flow complex is interbedded with and overlain by regional ashflow tuffs and local pyroclastic deposits. Recent detailed studies in the Indian Peaks area have demonstrated that the Taylor Creek Rhyolite can be separated, with some difficulty, into four dome–flow complexes or phases. Detailed work has also shown that the ash-flow tuffs, originally lumped as one unit and called Railroad Canyon Rhyolite, actually consist of two regional tuffs, Bloodgood Canyon Tuff and Shelley Peak Tuff, as well as locally derived ash-flow tuffs.