A search was initiated in Yellowstone National Park on August 26 for Kassandra “Kassie” Wieferich, a park concession employee.

Yellowstone spokesman Al Nash says Wieferich reportedly missed several shifts at work and failed to meet a family member the previous afternoon as planned.

After a brief search in the Old Faithful Lodge area, the body of the 21 year old from Twin Bridges, Montana, was located not far from the point she was reportedly last seen by a fellow employee.

Nash says details surrounding her discovery were withheld from the public until Wednesday afternoon to allow for notification of family members.

The incident remains under investigation by National Park Service park rangers and special agents.