Richardson Island facts for kids
USGS aerial imagery of the former location of Richardson Island
|Adjacent bodies of water||San Francisco Bay|
|Highest elevation||16 ft (4.9 m)|
Richardson Island is a former marsh island in the Sacramento–San Joaquin River Delta, now completely surrounded by land. It is located in Marin County, California. Its coordinates are , and the United States Geological Survey gave its elevation as 16 ft (4.9 m) in 1981.
Richardson Island Facts for Kids. Kiddle Encyclopedia.