From a separate 9to5mac article:
Breaking with tradition, Apple didn’t name macOS 27 after a national park, lake, or other natural landmark. Instead, this year’s release is named after San Francisco’s iconic Golden Gate Bridge.
Typical of 9to5mac "reporting." The Golden Gate is a natural landmark, it's the strait between San Francisco and Marin which the famous bridge spans. Nowhere in the OS release even says the word bridge.
Fun fact. While it might seem safe to assume the "gold" in Golden Gate refers to the gold discovery about 100 miles upriver that started the California gold rush, it was in fact named the Golden Gate prior to the gold discovery. John C. Fremont (my favorite early Californian) named it such because of the color of the hillsides when he first arrived.