title: Knight Island (California)
text: # Knight Island (California)
  
  Knight Island is a mostly-submerged island in the Napa River, upstream of San Pablo Bay (an embayment of San Francisco Bay). It is in Solano County, California, and managed as part of the Napa-Sonoma Marshes Wildlife Area. Its coordinates are 38°08′09″N 122°17′58″W﻿ / ﻿38.13583°N 122.29944°W﻿ / 38.13583; -122.29944﻿ (Knight Island), and the United States Geological Survey measured its elevation as 3 ft (0.91 m) in 1981.
  
  