The steamboat Vesuvius of 400 tons was launched at Pittsburg in December 1813, designed as a regular trader between the falls of Ohio and New Orleans.[246] In April, 1814, she sailed from Pittsburg, having been successfully tested in several trial trips of four and five miles up and down the Ohio and Monongahela.[247] Her voyage from Pittsburg to Shippingsport was made in 67½ hours, from Shippingsport to Natchez in 125½ hours, from Natchez to New Orleans in 33 hours, total 227 hours.[248] She was employed for some months between New Orleans and Natchez, and was finally destroyed by fire.[249] The steamboat Enterprise, built on the Monongahela, arrived at Pittsburg in July, 1814, designed as a packet between that place and the Falls of the Ohio. She was tried against the current of the Monongahela, unusually high and rapid for the season, and made 3½ miles an hour, and then returned with the stream in ten minutes.[250] Having reached New Orleans, the Enterprise made five trips to the Balize, and one to the Rapids of Red River. One of the trips to Natchez was made in four days, a distance of 313 miles, against the strong current of the Mississippi River, without the aid of sails. Another trip from New Orleans, to Beardstown, 1500 miles against the current was made in 25 days.[251] In August, 1815, this steamboat reached Brownsville, in ballast, having discharged her cargo at Pittsburg. The Enterprise was the first steamboat that ever made the voyage to the mouth of the Mississippi and back. The voyage up the rivers, about 2200 miles, was made in 54 days, 20 days being employed in loading and unloading freight at the river towns.[252] The Buffalo, of 285 tons, was launched at Pittsburg in July 1814, designed to ply between that place and Louisville, once a month.[253] The Despatch, owned as well the Enterprise, by the 'Monongahela and Ohio steam-boat Company ' was built at Bridgeport in 1815, and was expected to pass through the water at the rate of nine miles an hour.[254] The Etna, in 1816, performed a voyage from the Falls of Ohio to New Orleans in 15 days.[255] The Oliver Evans, built at Pittsburg in 1816, was intended for the conveyance of passengers and goods on the Ohio and Mississippi.[256] The Washington, built at Wheeling in 1816,[257] was the boat which made the voyage from Louisville to New Orleans and returned in 45 days, convincing the public that steamboat navigation on the western waters would succeed.[258] Her boilers were on the upper deck, and she was the first boat on that plan.[259] The James Monroe, the Franklin and the Harriett, were also built at Pittsburg.[260]