A ZTEM (Z Tipper Axis Electromagnetic) airborne AFMAG survey was conducted over the Pampa Lirima geothermal project where a number of other ground geophysical surveys had been previously undertaken, including magnetotelluric (MT) soundings. The ZTEM survey at Pampa Lirima overflew the area for comparison. The ZTEM results appear to correlate well with previous geophysics and the known geology, including known fault structures and contacts, as well as a prominent conductivity high over the Lirima hot spring field. 2D-3D inversions of the airborne ZTEM appear to agree quite well with 3D inversion of ground MT for shallower depths (>2km), in particular the conductive clay-cap attributed to the deep 3D MT conductive heat source and a resistive NE-SW lineament that extends between the Lirima and San Andrés hot springs. © 2013 SEG.