Two New 7.5-minute Geologic Maps Are Now Available!

We are pleased to announce the release of two new geologic maps!

These publications are the result of our yearly 1:24,000-scale mapping efforts throughout the state and provide a detailed level of geologic mapping. Efforts are on-going to completely map the state at this scale. Digital versions of the maps can be found using the links provided below; paper copies may be purchased at myprint.wa.gov.

Geologic Map of the Lake Roesiger7.5-minute Quadrangle, Snohomish County, Washington, Map Series 2015-01
by
J. D. Dragovich, S. A. Mahan, M. L. Anderson, J. H. MacDonald Jr., J. F. Schilter, C. L. Frattali, C. J. Koger, D. T. Smith, B. A. Stoker, S. A. DuFrane, M. P. Eddy, R. Cakir, and K. B. Sauer

Summary: New geologic mapping, geochemistry, geophysics, and age data in the Lake Roesiger quadrangle are provided in this 42 x 36 in. map sheet (1:24,000-scale), and the accompanying 47-page pamphlet.


Geologic Map of the Port Ludlow and southern half of the Hansville 7.5-minute quadrangles, Kitsap and Jefferson Counties, Washington, Map Series 2015-02
by
M. Polenz, J. G. Favia, I. J. Hubert, G. L. Paulin, and R. Cakir

Summary: New geologic mapping, geochemistry, and age data in the Port Ludlow and Hansville quadrangles are provided in this 42 x 36 in. map sheet (1:24,000-scale) and the accompanying 40-page pamphlet.