Napa County and the City of Calistoga have tentatively reached an agreement whereby the City of Calistoga would purchase 34. 4 acres of the 70.6 acre Napa County Fairgrounds property. The City will pay $225,000 per acre for a portion of the property including the Calistoga Speedway, Calistoga RV Park, Pavilion, Butler Pavilion, Tubbs Building, Cropp View more