Carson's birthplace and childhood home in Springdale, Pennsylvania, now known as the Rachel Carson Homestead, became a National Register of Historic Places site and the nonprofit Rachel Carson Homestead Association was created in 1975 to manage it. Her home in Colesville, Maryland where she wrote "Silent Spring" was named a National Historic Landmark in 1991. Near Pittsburgh, a hiking trail, called the Rachel Carson Trail and maintained by the Rachel Carson Trails Conservancy, was dedicated to Carson in 1975. A Pittsburgh bridge was also renamed in Carson's honor as the Rachel Carson Bridge. The Pennsylvania Department of Environmental Protection State Office Building in Harrisburg is named in her honor. Elementary schools in Gaithersburg, Montgomery County, Maryland, Sammamish, Washington and San Jose, California were named in her honor, as were middle schools in Beaverton, Oregon and Herndon, Virginia (Rachel Carson Middle School), and a high school in Brooklyn, New York.