geology by Mark A. Middendorf ; GSRAD staff from 1978 to 2003, K.H. Anderson ... [and others] ; digital geologic compilation by M.A. Middendorf ... [and others] ; digital fault traces by C.M. Seeger ; digital cross section by H.W. Baker, Jr. ; digital map layout by K.L. Loveland and T.P. Hertel
geologic mapping by Kenneth H. Anderson ... [and others] ; editing and cartography under the direction of Jerry D. Vineyard ; Gary P. Clark ... [and others], artists