Figure 19. Geologic map of Carico Lake pluton, a resurgent intrusion of granite porphyry that intruded and steeply tilted Caetano Tuff near the middle of the caldera (Carico Lake North and Rocky Pass 7-' quadrangles). A breccia composed of coarse blocks of Caetano Tuff (Tcbx) probably formed by gravitational sliding of steeply tilted and uplifted tuff over the intrusion. The B and C units of the Bates Mountain Tuff show the normal, moderate, east dip resulting from middle Miocene extension (Colgan et al., 2008.