REBECCA YERGER Along Napaâs riverfront are numerous buildings that harken back to the waterwayâs heyday as the transportation and commerce hub of not only Napa but also the entire county. Some of these buildings were the homes of those who piloted the local steamships while others housed places of commerce and even the local militia. This vital waterfront was also the site of grand promenades, such as Independence Day parades as well as present-day walking tours. Support local news coverage and the people who report it by subscribing to the Napa Valley Register. Special offer: $3 for your first 3 months!