California ? An unstable cliff prompted officials Friday to permanently close some cabins in a popular Yosemite National Park lodge complex that has a long history of rockslides.

National Park Service officials said 233 cabins in family friendly Curry Village will close permanently. That’s about one-third of the units available in the complex that also includes stores and restaurants run by an outside company.

About half of the 618 cabins at the village have been off-limits since a rockfall Oct. 8.

An Associated Press story this week said federal geologists have warned for at least a decade that the granite face of Glacier Point above the village was dangerous. Despite two deaths and an increase in the frequency and severity of the rockfalls since 1996, park officials had been reluctant to act.

In the most recent incident last month, more than 150 youngsters were on field trips when the equivalent of 570 dump trucks of rock hit 17 cabins where they were staying and flattened one. No one was seriously injured.