1977 Heitz Bella Oaks Cabernet Sauvignon from a pristine magnum

This was pure 1970s California…. fast-forwarded. Slightly edgy and rustic. A nice dark fruit profile that seemed masked by a matured high oak level? Not quite sure. Some currant and spice, and some other nice secondaries. Kevin to my right loved it so, I emptied my glass and got myself more of that '75 Mayacamas. 89/100