| Lehman Cave has about 10,000 feet irregular-shaped passages. Caverns within the park occur within the Pole Canyon Limestone Member of Middle Cambrian age (Dewes and Palmer, 1957). However, the cavern itself probably formed only within the last several million years, long after the Snake Range had already been uplifted and a natural groundwater flow system became established to dissolve out minerals along fractures in the limestone (or marble). The speleothems could only form after the ground water table receded, allowing the cavern to fill with air. |
