Figure 1: Basaltic vents, lavas, and intrusions of the YMR younger than about 9 Ma. Geology compiled from Byers et al. [1966]; Ekren et al. [1966]; Carr and Quinlivan [1966]; Byers and Barnes [1967]; Byers and Cummings [1967]; Hinrichs et al. [1967]; Noble et al. [1967]; Tschanz and Pampeyan [1970]; Cornwall [1972]; Crowe et al. [1983, 1986]; Carr [1984]; Swadley and Carr [1987]; and Faulds et al. [1994]. Locations of aeromagnetic anomalies [stars] from Kane and Bracken [1983] and Langenheim et al. [1993]. Sources for age estimates listed in Table 1. Dashed line is the CFVZ [Crowe and Perry, 1989], dashed-dotted line is the AMRV [Smith et al., 1990]. Contours generated from regional 3-arc-second Digital Elevation, 200 m contour interval. UTM projection, Nevada zone 11, NAD 1983 datum.