IOP-3 provided intensive observations of the largest winter storm to strike the Wasatch Mountains in two years, with as much as 80 cm of snow falling near the Wasatch crest in less than 18 h. Observations provided by high-density precipitation gauges will be used to show that orographic precipitation enhancement extended 2030 km upwind of the barrier and reached a maximum on or near the Wasatch crest. To the lee of the barrier, storm-total precipitation decreased by a factor of 4 within 10 km of the crest. Data collected by the NOAA P-3 research aircraft, two mobile Doppler radars, supplemental radiosondes, and a high-density mesonet (MesoWest) will be used to describe how the major kinematic features of the event, including a convergence zone and barrier jet windward of the Wasatch and an intense mountain wave to the lee, contributed to the observed precipitation distribution. Additionally, although the Wasatch are nearly a linear, meridionally-oriented mountain barrier, at one location (Ben Lomond Peak), significant topography extends 5 km normal to the crest towards the west. We will illustrate that the interaction of the barrier jet with this feature resulted in westward deflection of the jet, low-level convergence, and substantial local enhancement of precipitation. An evaluation of high-resolution numerical simulations of the event will also be presented as time allows.