Read more Second California Sports Betting Measure Qualifies for November Ballot -Ī mobile sports betting measure received enough signatures last week to qualify as a choice on California's November ballot. Last week the Sonoma County Supervisors approved a new agreement with the Dry Creek Rancheria for building a new casino and hotel on the 75-acre site of the River Rock Casino. News Headlines New River Rock Casino Plan Approved by Sonoma County Ma.