The view from the top of the KPFk tower, looking south. The distant dark mountain to the left is Santiago Peak (5687feet) and the Santa Ana Mountains. The hills visible to the right of the KCAL tower are the Chino Hills, including Hacienda Heights. The KABC tower is directly in the path towards mid-Orange County. The highway (barely visible on the right side) is Highway 19, trailing off into South El Monte.
Here's the view looking towards San Bernardino, across the top and the Observatory.