Howell at the Moon Vineyards and Winery is on a 21 acre rural site at the top of Howell Mountain in Angwin. The administrative area consists of a 1000 sq. foot brick farmhouse built in 1923, and a 1600 sq. foot entertainment deck, with a professional outdoor kitchen, wood burning pizza oven, and swimming pool/hot tub, that can accomadate private tastings and parties.