Goosecross Cellars is a small winery just outside Yountville, giving visitors a vineyard-side tasting option away from the town's restaurant-heavy centre. It fits the Napa Valley rhythm of slow appointments, short drives, and comparing estates by setting as much as by glass.
This is a wine-country POI rather than a general sightseeing stop, so it makes sense if tastings are part of your Yountville plan. Book ahead when required, pace yourself, and combine it with nearby wineries rather than treating any single tasting room as the whole day.