A 50-km aperture geodetic network centered on the proposed high-level radioactive waste disposal site at Yucca Mountain, Nevada, was surveyed with GPS in 1993 and 1998. The average deformation rate across the area is described by the principal strain rates 22.8¿8.8 nstrain yr-1N77.6 ¿W¿13.5¿ and -8.8¿11.9 nstrain yr-1N12.5 ¿E¿13.5¿ (extension reckoned positive) and a clockwise rotation rate about a vertical axis of 9.6¿7.4 nrad yr-1 relative to fixed North America. Quoted uncertainties are standard deviations. Those strain rates are consistent with the geodetic strain rates (2¿12 nstrain yr-1N87¿¿12 ¿W and -22¿12 nstrain yr-1N03¿¿12 ¿E) previously reported by Savage et al. <1999> for the 1983--1998 interval and with the low extension rate (5--20 nstrain yr-1) <Marrett et al., 1998> inferred from the geologic record. None of those strain rates is consistent with the 50¿9 nstrain yr-1N65 ¿W extension rate for the area reported by Wernicke et al. <1998>. ¿ 2001 American Geophysical Union