Geologic Map of Lower Geyser Basin, Yellowstone National Park, Wyoming by L.J.P. Muffler, D.E. White, M.H. Beeson and A.H. Truesdale 35"W x 21"H Scale 1:24,000 Miscellaneous Investigations Series maps are folded and sleeved by US Geological Survey. Use pricing menu to select appropriate postage for U.S.A., Canada or Foreign addresses (Foreign = countries other than U.S.A. and Canada). SUP, SPO and BEN subscriber discounts include postage and handling worldwide.