Comment period open for proposed wastewater facilities upgrades at Lewis & Clark Caverns State Park

Montana Fish, Wildlife & Parks staff at Lewis & Clark Caverns State Park are proposing to replace and upgrade the septic drain field at the park.

The new system would handle projected increases in visitation over the next 20 years. The existing drain field is insufficient to support the current number of visitors, which have recently increased.

Visitation during the first quarter of 2021 at Lewis & Clark Caverns State Park was up by 78 percent from the same period in 2020 and more than triple the visitation during the first quarter of 2019.

The drain field would be located in the northwest end...