Crater Lip and Throwout. from barge shots. No consideration has been given in this report to crater lips formed Any lips formed by these craters have either been destroyed through washing or are not clearly defined by the fathometer data. Any conclusions, therefore, may not be valid. Of the three land shots only two, Shots Fig and Cactus, had recordable lips. Shot Koa, Figure 17, had no visible lip and it is assumed that the wave produced by the shot washed away anylip that might have been formed. 38