IMS-20, Relative earthquake hazard maps of ground motion amplification, liquefaction, and slope instability for Klamath County, Oregon, by Zhenming Wang, and Yumei Wang, 2000, 28 p., Amplification Map, 1:500,000; Liquefaction Map, 1:500,000; Slope Instability Map, 1:500,000; Figure 1, 1:1,000,000; Figure 2, 1:1,000,000; Figure A-1, 1:1,000,000 Figure B-1, 1:1,000,000.