On this date in 1897 there was a glacial outburst of the lateral moraine of the glacier near Sheep Camp on the Chilkoot Trail. This caused a tremendous flood which carried 7 people away. Among those drowned were Aaron M. Choynski and his friend Flynn. Aaron was the brother of Joe Choynski, a nationally known prizefighter. Also killed were Mr and Mrs Crockett who ran a restaurant at Sheep Camp and three unknown persons.
In June 2002 there was another glacial outburst of the West Creek Glacier which caused damage in Dyea. A jökulhlaup is a glacial outburst flood, something that happens when a moving glacier forms a dam. Because ice makes a poor dam, being lighter and softer than rock, the water behind the dam eventually breaks through.