From its own website

Old Creek Ranch Winery

Winery in Oak View, California

10024 E Old Creek Rd, Oak View, CA 93001

Dogs

What Old Creek Ranch Winery says about dogs

Dogs allowed: Yes
From its own website, checked 5 Nov 2026oldcreekranch.com(source page for Dogs allowed, opens in a new tab)
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“Dogs are welcome and must be leashed and supervised at all times”
Where dogs can go: Not stated

Informational only. Rules change, so check with the winery before you go.