Welcome to TNet ! From your description of the area you find/found these
items, they could be made by early inhabitants of the land. I would suggest you get in touch with some historians, anthropologists & museums with
"First Nations in Alberta". There must be some experts there that deal with such finds & can give you a good idea of what they are & from what era.
Here's a wikipedia link that has some info that could point you in the right direction concerning your finds. Best wishes in your search & thanks for posting.