rt138Rt 138 Cafe, Mount Olive, Illinois. 1,058 likes · 1 talking about this · 1,121 were here. Breakfast, lunch, and dinner served all day! Open 6 days a week Tuesday - Saturday 6am toState Route 138 (SR 138) is an east–west state hhway in the U.S. state of California that generally follows the northern foothills of the San Gabriel Mountains and the western Mojave