The City of Oroville is considered the gateway to the Lake Oroville and Feather River recreational areas. Oroville offers some of Butte Countys and Northern California's greatest recreational opportunities. Lake Oroville was created by the second largest earthfilled dam in the United States. The lake offers many sporting activities throughout the year, such as skiing, sailing, swimming, fishing, camping and picnicking. The recreation areas in the greater Oroville area are one of the most significant attractions to the greater Oroville region.