Supplemental Material: The geometry of fault reactivation and uplift along the central part of the Maacama Fault Zone, Northern California Coast Ranges

Figure A1 (interactive version of Figure 7). Results of the geomorphic analysis of the northern Mayacamas Mountains. Use radio buttons to view sections A–D. (A) Channel steepness index map; elevated values are shown by brighter colors, and basin numbers 1 through 14 correspond to subfigures B and C, Figure 8, and mentions throughout the text. Hillshade is from NASA Shuttle Radar Topography Mission (2013). (B) Chi map with brighter colors representing greater chi values; chi gradients are identified where adjacent basins have disparate chi values at their uppermost reaches. (C) Concavity index map displaying concavity results for each basin; lighter colors indicate lower concavity, labels are basin #: concavity value. (D) Geologic map presented in Figure 2 is included here for easy reference to identify areas where rock hardness may impact geomorphic results. Sp—sheared serpentinite lens; UCMA—Ukiah–Cow Mountain antiform; MMS—Middle Mountain Synform; WCF—Willow Creek Fault.