passed over the headwaters of the tributary Dago Creek at . A sleigh road connecting Two Harbors and Beaver Bay ran alongside the railway through the upper Gooseberry watershed. Logging and fire exhausted the pine by the 1920s, and loggers moved out of the region. The Alger Line ceased to operate in 1923 and London became a ghost town. A few houses were reported standing in the 1950s, but more modern reports claim only foundations remain. The site is now the subject of ghost stories. A bridge was built over the Gooseberry near the falls in 1922 to service Minnesota State Highway 61, the only highway to Canada along the North Shore. The original bridge, Bridge no. 3585, was built by the Illinois Steel Bridge Company. It was expanded to include a third arch so as to widen the road in 1937. In 1990 a decision was made to replace the deteriorating bridge with another arch bridge evocative of the original. This replacement bridge, #38010, was inspected after the collapse of the 35W Mississippi River bridge in 2007 due to design similarities. No critical deficiencies were found. The original truss bridge had an arch of 150 feet, and the modern bridge has an arch of 154 feet. The region around the falls was placed under protection by the legislature in 1933, and in 1934 the Civilian Conservation Corps began developing this land into what would become Gooseberry Falls State Park, which opened in 1937. Emergency CCC Camp #1720 operated from May to October 1934, and CCC Camp #2710 operated from July 1934 to May 1941, building more than 80 structures in the park's distinctive style. The park now receives over six hundred thousand visits annually. See also List of rivers of Minnesota References Rivers of Minnesota Tributaries of Lake Superior Rivers of Lake County, Minnesota Northern Minnesota trout streams