Surrounded by the same stately trees for which it was named, Oaks Park, celebrated it's 100th consecutive year of operation in 2005, making it one of the oldest continuously operating amusement parks in America. Built by the Oregon Water Power and Navigation Company, the park opened its gates on May 30, 1905 to Portlanders who arrived by foot and on horseback, in automobiles and by boat from the Willamette River. In keeping with the design of other "Trolley Parks" across the country, most of its visitors disembarked from trolley cars which ran along the Portland-to-Oregon City tracks forming the eastern boundary of the park.