Park superintendent Suzanne Lewis joined all three Gallatin County commissioners for Tuesday's impromptu ceremony at the West Yellowstone Senior Center. The grant allowed the county to pay off the remaining $3.7 million on the $4 million loan from the state for the West Yellowstone-Hebgen Basin Composting Facility. The center processes more than 3,000 tons of compost a year from the park and the surrounding area.

The money was appropriated by Congress. That gave the Park Service the authority to use it to pay off the loan.