This National Monument in the Pacific Northwest Was Just Named a Dark Sky Park - and It Has Stunning Marble Caves, Too
Briefly

Oregon Caves National Monument and Preserve, now recognized as a dark sky destination, completed a three-year night sky monitoring program and a comprehensive in-park lighting assessment.
Visitors can explore its unique underground system of caves through various guided tours, discovering geology, rich history, and rare wildlife, including ghost shrimp.
Read at Travel + Leisure
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