p. 91

117

* This Portage summit is stated by Mr. Higgins the Topographer of Michigan (Report of 1839 page 49) to be 121 feet above Lake Michigan, which is evidently too low.

In that report the "Little Chute" is stated to have a few of only one and a half feet, whereas Capt. Cram ascertains by "instrumental survey" that the descent here is thirty one feet; and on seven rapids below Lake Winnebago he reports a fall of about 120 feet, to which is to be added all the descent in the river between these rapids.