During the mid-1800s, the Napa River brought people to Napa City from around the world, attracted by the beauty and bounty of the valley. Riverboat captains played a major role in creating the material wealth of the city as their vessels plied the waters of San Francisco Bay carrying freight and passengers. As the powerhouse of industry, the river attracted several tanneries that needed water to make the now famous "Nappa" leather. Napa became a leather colony with the growth of shoe, glove, and glue factories. The river became a key transportation artery, and its channel became the focus of...