Seismic reflection data acquired in the region of Subglacial Lake Ellsworth. Recording instrument: Geometrics Geode, 48 channels, active source (explosives). Five single-fold lines. Line length between 7.7 and 2.5 km. In addition, fold increased to 4 for the central part of one line (over the lake itself). Dataset also includes data from a single shallow seismic refraction experiment.