Washington: Government Printing Office, 1908.
Hardcover. First edition. House Document No. 1124 (60th Congress, 2nd Session, 1908-1909). Portfolio. 18pp. (stitched) and 18 loose folded topographical maps (numbered 0-17). Complete as issued in the original publisher's cloth portfolio with cloth tie. Moderate soiling to the portfolio, very good. A scarce complete set of maps and accompanying report, prepared by Lieut. Col. John Biddle of the U.S. Army Corps of Engineers.