_James River_ itself affords a harbor for vessels of any size in Hampton Road, but not in safety through the whole winter; and there is navigable water for them as far as Mulberry Island. A forty gun ship goes to Jamestown, and, lightening herself, may pass Harrison's bar; on which there is only fifteen feet water. Vessels of two hundred and fifty tons may go to Warwick; those of one hundred and twenty-five go to Rocket's, a mile below Richmond; from thence is about seven feet water to Richmond; and about the centre of the town, four feet and a half, where the navigation is interrupted by falls, which in a course of six miles, descend about eighty-eight feet perpendicular; above these it is resumed in canoes and batteaux, and is prosecuted safely and advantageously to within ten miles of the Blue Ridge; and even through the Blue Ridge a ton weight has been brought; and the expense would not be great, when compared with its object, to open a tolerable navigation up Jackson's river and Carpenter's creek, to within twenty-five miles of Howard's creek of Green Briar, both of which have then water enough to float vessels into the Great Kanhaway. In some future state of population I think it possible that its navigation may also be made to interlock with that of the Potomac, and through that to communicate by a short portage with the Ohio. It is to be noted that this river is called in the maps _James River_, only to its confluence with the Rivanna; thence to the Blue Ridge it is called the Fluvanna; and thence to its source Jackson's river. But in common speech, it is called James River to its source. The _Rivanna_, a branch of James River, is navigable for canoes and batteaux to its intersection with the South-West mountains, which is about twenty-two miles; and may easily be opened to navigation through these mountains to its fork above Charlottesville. _York River_, at Yorktown, affords the best harbor in the State for vessels of the largest size. The river there narrows to the width of a mile, and is contained within very high banks, close under which vessels may ride. It holds four fathom water at high tide for twenty-five miles above York to the mouth of Poropotank, where the river is a mile and a half wide, and the channel only seventy-five fathom, and passing under a high bank. At the confluence of _Pamunkey_ and _Mattapony_, it is reduced to three fathom depth, which continues up Pamunkey to Cumberland, where the width is one hundred yards, and up Mattapony to within two miles of Frazier's ferry, where it becomes two and a half fathom deep, and holds that about five miles. Pamunkey is then capable of navigation for loaded flats to Brockman's bridge, fifty miles above Hanover town, and Mattapony to Downer's bridge, seventy miles above its mouth. _Piankatank_, the little rivers making out of _Mobjack Bay_ and those of the eastern shore, receive only very small vessels, and these can but enter them.