Zimmerman, himself a cave resident, has spent decades carving out a dozen quarters from a hillside overlooking the Salmon River rapids.

• 绰号为“防空洞迪克”的齐默曼表示，他提供的这些住处既可以被当成防空洞，也可以让那些自带工具的人们从这里开始挖掘工作。