Seventies Brain Pick

Is there any Big Dumb Object fiction published by women in the 1970s? I'm dealing with Rama, Ringworld, Orbitsville, Inverted World and a couple more, but it's a blokey list. Up The Walls of the World, maybe? Novel, novella, short story, whatever. The mind has gone blank... I'm sure I'm missing something bleeding obvious.

9900 / 100000 words. 10% done!