KRON (Channel 4) was the first television station to place a transmitter tower on Radio Peak, in 1949, followed by KQED and KTVU, though these tenants moved their transmitters to Sutro Tower in the 1970s.
In 1965, Westbay Community Associates announced a plan to level a portion of the mountain to fill 27sqmi of San Francisco Bay north of Sierra Point with landfill.