The Channeled Scabland: Back to Bretz?: Comment and Reply: REPLY

We thank Atwater et al. for their comments on our paper and acknowledge their long experience in Scabland studies. We believe that some of their disagreement with our conclusions rests on their impression that we eliminate Glacial Lake Missoula as a source for the Scabland floods. Although we introduce other sources of floodwater, Glacial Lake Missoula remains important and is shown as a major reservoir on our Figure 6 (Shaw et al., 1999). The addition of subglacially stored water is crucial for supplying floodwaters to the western erosional tracts in the Channeled Scabland. Atwater et al. are also...