Published by Colorado Geological Survey., 1924
Seller: Eryops Books, Stephenville, TX, U.S.A.
Soft cover. Condition: Good. ORIGINAL 1924 PUBLICATION; softcovers; ex-library; missing rear pocket (but the three folded plates are present; loosely-inserted); small stain spots on fore-edge and upper edge of last approx. 6 leaves; upper corner of last 4 leaves clipped; small hole along edge of one plate (does not touch the map image); o/w contents in good condition. Journal.