Duwamish did not move to reservation lands, yet still retain much of their cultural heritage. In recent decades notable elders are recovering and younger members are further developing that heritage. Members of the Duwamish continue to be involved in Seattle's Urban Indian culture, as represented in such institutions as United Indians of All Tribes and the Seattle Indian Health Board. While there had been few visible signs of traditional Native culture in Seattle since the early 20th century, in March 1970 local Indians burst back into visibility in the most unmistakable way. Bob Satiacum (Puyallup), United Indians founder Bernie Whitebear (Colville Confederated Tribes) and other Native Americans invaded and occupied then-active Fort Lawton, which was originally Indian land, by scaling fences and by scaling the bluffs from the beach. The base had been declared surplus by the Department of Defense. Under the Treaty of Point Elliott, the United Indians of All Tribes presented a claim to all lands that might be declared surplus. After worldwide interest, long negotiations and congressional intervention, an eventual result was the construction and a 99-year renewable lease with the City of Seattle for a site adjacent to the new Discovery Park after the decommissioning of most of the base. The result was Daybreak Star Cultural Center (1977), an urban base for Native Americans in the Seattle area. Cecile Hansen, great-great-grandniece of Chief Sealth, has been the elected chair of the Duwamish Tribe since 1975, as well as a founder and the current president of Duwamish Tribal Services. In line with the re-asserted Native presence in Seattle, the Tribe established Duwamish Tribal Services in 1983 as a non-profit 501[c]3 organization to provide social and cultural services to the Duwamish Tribal community. Hansen has also dedicated herself to gaining treaty rights for the Duwamish. James Rasmussen of the Duwamish Tribe has been a leader since 1980 in efforts to restore the Duwamish River, working with citizen groups and other tribe members. Accomplishments include gaining federal Superfund Site status for the last of the river from Turning Basin and Herring House Park to the mouth. The lower Duwamish was the site of the former concentration of Duwamish villages before substantial European contact. The most contaminated spots are being dredged and capped, largely c. 2007, overseen by the Port of Seattle and the United States Environmental Protection Agency—and watchdogged. Complications ensue from the difficulties in tracing those responsible. Riparian