When I recently reviewed American single malts, Stranahan's Colorado Whiskey was the best of the four I tasted. At the time, Stranahan's wasn't available in California, but last weekend, I saw a bottle at Wine & Liquor Depot in Van Nuys. Now, I don't know that Stranahan's is worth the $50.00 (approx.) price tag, but if you are curious about American single malts, you can't do much better.
Wine & Liquor Depot
Saticoy, west of Balboa, Van Nuys