William H. C. Folsom, Fifty Years In The Northwest
“ An interesting feature at the junction of the two rivers is the cave in which the pioneer settler, Judge Joel Foster, with his negro boy, spent the winter of 1848-49. From his cave cabin he had full view of the falls on the two streams, no less beautiful in their winter dress of gleaming icicles, with the frost-whitened boughs of the willow and alder drooping over them, than in their summer brightness. The judge has told me that he loved, almost worshiped, this spot. The cave cabin stood about one hundred feet from the sparkling stream. ”
