Shallow seismic refraction traverses were carried out over six proposed sites for stream gauging near Hawker in South Australia. The results have determined bedrock topography and the depth to the water table at each site. The subsurface was clearly defined at each site by three velocity zones: 380 m/s for dry creek gravel; 1400 m/s for saturated gravel; and basement velocities greater than 2 400 m/s.