I've confirmed Mt. Oso and Mt. Bullion. Here are my latest observations about the unknown sites:
Site 72 - Coverage along I-5 and CA-99 in Fresno County, but definitely not Joaquin Ridge
Site 73 - Picked up in Visalia, but doesn't seem strong enough to be Blue Ridge
Site 85 - Picked up in Arroyo Seco/Sycamore Flat area in Monterey County