Tasting Room

Visit our shop in Historic
Downtown Mariposa

5022 Highway 140
Mariposa, CA United States
Call
 (209) 742-2000

Tasting Room Hours

Friday 11 AM – 5 PM
Saturday 11 AM – 5 PM
Sunday 11 AM – 4 PM
Monday Closed
Tuesday Closed
Wednesday 11 AM – 5 PM
Thursday 11 AM – 5 PM

January/February - By Appointment Only

Winery Info

6947 Highway 49 North
Mariposa, CA 95338

For winery appointments and questions:
(209) 377-8450
jason@castooakswine.com

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Our 

Handcrafted

Wines

Mount Bullion Vineyard announces our new label, Casto Oaks. You are invited to stop by our tasting room and sample our full range of wines. From full bodied Cabernet’s to Earthy and balanced Zinfandel’s. Our family winery produces up to 1,200 cases a year. We hope to share our passion of handcrafted wines with you soon. Enjoy with good friends and good food!

Shop Our Selections

our wine club…

Join 

Casto Oaks wine club details: 

✓ Each wine is hand selected by our vintner. 

✓ 2 different Club options to best suit your needs. 

✓ Receive a 15-20% savings on wines when purchased at Casto Oaks Tasting room or on our website

✓ Preferred pricing on lodging accommodations at our Winemakers Cottage. 

✓ Membership also includes pre-released wines not yet available to the public.

✓ Free cancellation with 1-year obligation (2 shipments). Cancellations will need to be cancelled within 30 days before shipment.

Club choices:

Club A  •  2 shipments per year of 6 bottles at a 15% savings

Club B  • 2 shipments per year of 12 bottles at a 20% savings