1. Montana Fish, Wildlife and Parks Lewistown Area Resource Office 205 West Aztec Lewistown MT59457USA
2. U.S. Geological Survey, Montana Cooperative Fishery Research Unit, Department of Ecology Montana State University Bozeman Montana
3. Montana Fish, Wildlife and Parks Lewistown Area Resource Office Lewistown Montana
4. Bureau of Reclamation Montana Area Office Billings Montana
5. U.S. Fish and Wildlife Service Bozeman Fish Technology Center Bozeman Montana