Visitors headed to the popular Boulder Cave area will need to make reservations in advance this year as part of an effort to reduce congestion, wait times and parking difficulties. The cave and ...

CLIFFDELL, Wash. (AP) At Boulder Cave, curiosity has all but killed the bat. In the cave chambers once used for winter hibernation by more than 2,000 bats, there are now mere dozens. And with a deadly ...

NACHES — Boulder Cave off State Route 410 will open to visitors just in time for Memorial Day weekend. Beginning Friday, the day use site and trail will open daily from 8 a.m. to 8 p.m., the U.S.