Apparently, there are previously undiscovered moors in Napa Valley
Look, I'm from California, OK? You want to set dramas in Napa Valley, be my guest. But not Wuthering Heights. Napa Valley has lots of wineries! It's a popular tourist destination! There's sun and stuff! Are Heathcliff and Cathy going to cavort amongst the grape vines, surrounded by visitors in shorts and sunglasses?