SAN FRANCISCO (AP) — A landmark restaurant that's been a San Francisco fixture for 150 years has now become a casualty of the federal government shutdown, putting more than 170 people out of work. Cliff House, a private establishment, is perched atop the cliffs overlooking Ocean Beach and Seal Rocks. It has drawn tourists and locals alike since it opened in 1863 with its spectacular views and menu items like spinach ricotta pine nut ravioli and baked Alaskan halibut filet. But as a concessionaire of the Golden Gate National Recreational Area, which is operated by the National Park Service, it's been forced to shutter its doors during the shutdown. Last week, the restaurant closed for four days but defiantly reopened on Monday. On Tuesday afternoon, however, federal authorities ordered it to close again.