By the 1970s, most lighthouses were automated, mariners were using GPS systems, and the keepers were not needed at these sites.
The new site had a walkway around the hill cliff side with a suspension bridge to the lighthouse.
At the same time, Chinese laborers experienced in digging rail tunnels were hired to pick axe a 180-foot tunnel to bring supplies to the lighthouse.
Automated in 1980, it was the last manned lighthouse in California.
However, there were many historic lighthouses without keepers, and the structures were falling apart.
The Coast Guard and lighthouse enthusiasts recognized this fact and had legislation passed to have the Coast Guard disposition them.