This Fallout 76 map shows you all the different locations you can find the vendors and their factions throughout the Appalachia. The Fallout 76 Vendors are divided into 7 different factions and they all carry 200 caps as currency to purchase items from you. There are different vendors divided in to these types: Responders, Raiders, Free State, Brotherhood of Steel, Enclave, Whitesprings and Unique.
Click the image above and use the link to navigate through the vendor locations.