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- Alberta. Environment Conservation Authority 28
- Burles, Gordon 27
- Parks Canada 22
- Alberta. Laws, statutes, etc 18
- Canada. National and Historic Parks Branch 15
- Baird, David M 14
- Martel, Lynn 13
- Birney, Earle 11
- Canadian Pacific Railway 11
- Dempsey, Hugh A 11
- Ford, Theresa M., ed 11
- Gordon, Charles William 11