TY - RPRT TI - Stratigraphy, structure, and graptolites of an Ordovician and Silurian sequence in the Terra Cotta Mountains, Alaska Range, Alaska AU - Michael Churkin AU - Claire Carter PY - 1996 DO - 10.3133/pp1555 UR - https://pubs.usgs.gov/publication/pp1555 ID - pp1555 ER -