Harper’s Ferry, WV -  On March 16, 1803, Lewis arrived in Harpers Ferry with a letter from Secretary of War Henry Dearborn addressed to Armory superintendent Joseph Perkins:
Sir: You will be pleased to make such arms & Iron work, as requested by the Bearer Captain Meriwether Lewis and to have them completed with the least possible delay.  In addition to procuring 15 rifles, 15 powder horns, 30 bullet molds, 30 ball screws, extra rifle and musket locks, gunsmith's repair tools, several dozen tomahawks, and 24 large knives, Lewis also attended to the construction of a collapsible iron boat frame of his own design.
Visit Harpers Ferry National Historical Park.

Elizabeth, PA - In 1803, Lewis apparently had his first two pirogues built here.  Visit the  Monongahela River, which flows from West Virginia into western Pennsylvania. The headwaters of the Monongahela River are at the confluence of the Tygart and West Fork rivers at Fairmont, West Virginia. The river joins with the Allegheny River in Pittsburgh, Pennsylvania, to form the Ohio River.
 

Pittsburgh, PA - On July 15, 1803, Lewis experienced great delays in getting the keelboat built and did not leave until August 31, 1803.   Visit the Carnegie  Museum of Natural History.