a third major logging region. That area was dominated by one company owned by Frederick Weyerhaeuser. The construction of railroads allowed loggers to log year round, after rivers froze, and go deeper into the forests to cut down previously unshippable wood supplies. Wood products from Wisconsin's forests such as doors, furniture, beams, shipping boxes, and ships were made in industrial cities with connects to the Wisconsin lumber industry such as Chicago, Milwaukee, Sheboygan, and Manitowoc. Milwaukee and Manitowoc were centers for commercial ship building in Wisconsin. Many cargo ships built in these communities were used to transport lumber from logging ports to major industrial cities. Later a growing paper industry in the Fox River Valley made use of wood pulp from the state's lumber industry. Logging was a dangerous trade, with high accident rates. On October 8, 1871, the Peshtigo Fire burned 1,875 square miles (4,850 km2) of forest land around the timber industry town of Peshtigo, Wisconsin, killing between 1,200 and 2,500 people. It was the deadliest fire in United States history. From the 1870s to the 1890s, much of the logging in Wisconsin was done by immigrants from Scandinavia. By the beginning of the twentieth century, logging in Wisconsin had gone into decline. Many forests had been cleared and never replanted and large corporations in the Pacific Northwest took business away from the Wisconsin industry. The logging companies sold their land to immigrants and out of work lumberjacks who hoped to turn the acres of pine stumps into farms, but few met with success. Wisconsin is known in the 18th century to have discovered gold deposits in western Wisconsin. Such discoveries occurred around the town of St. Croix Falls where a settler stumbled across a gold nugget valued to be worth lots at the time. It's no surprise Wisconsin's western region was once the site of volcanic eruptions so it makes sense that minerals that weren't commonly found in other parts of the state would be present here. 20th century Wisconsin was a regional and national model for innovation and organization in the Progressive Era in the early 20th century. The direct primary law of 1904 made it possible to mobilize voters against the previously dominant political machines. The first factors involved the La Follette family going back and forth between trying control of the Republican Party and third-party activity. Secondly the Wisconsin idea, of intellectuals and planners