We computed a reflectivity image for the Earth beneath the Jemez volcanic field, New Mexico, using a novel adaptation of petroleum exploration seismic imaging. This image was obtained by applying the Kirchhoff wave field imaging method to digitally recorded teleseismic data. The volume imaged has a lateral extent of 30 km, extends to 45 km depth, and lies beneath the Valles caldera, to the west of Los Alamos, New Mexico. The derived picture of the Earth is a three-dimensional (3-D) map of the locations of impedance changes within the crust and upper mantle below the Jemez volcanic field, with a spatial resolution on the order of a kilometer. Significant features seen in the image include the base of the caldera fill; several reflectors in the crust we interpret to be associated with intrusions coming from the mantle and/or other crystallized chambers such as a low-velocity zone seen in the tomographic image; two strong reflectors coincident with the crust-mantle interface, and a zone of layered reflections at the base of the crust which may be basaltic underplating. This method proved to be a powerful tool for imaging the Earth's crust and mantle when combined with other methods, such as tomography.