Page:Historic highways of America (Volume 9).djvu/96

90 ally began in October and lasted until the advent of winter, or about the first of December. At this time the forming ice prevented navigation. These spring and fall freshets, however, could not be called periodical, as they entirely depended upon the rainfall and the earliness or tardiness of the beginning and ending of winter. Nor were these seasons of high water entirely confined to the spring and autumn. It commonly occurred that in the summer season a heavy rainfall in the Appalachian ridges, where the creeks and rivers that flow into the Monongahela take their rise, would cause a considerable freshet in the Ohio; or a swelling of the current of the Allegheny and other rivers often happened in the summer months and occasioned a sufficient amount of water, if taken immediate advantage of, to render the navigation of the Ohio perfectly possible. These out-of-season freshets, however, subsided rapidly and if the owner of a boat wished to take advantage of one and go down the river, he had to embark immediately.

"When provided with a good boat and