It has been said that a young man from the country can go to the city and learn all it's ways but a young city man can never learn all the things a farmer knows.
I suppose the same could be said about Native American culture before it was badly damaged.
The Cheyenne used three pole tepee, that is, the beginning framework erected with three and the
rest were added. The Crow used a four pole. This appears to be a three pole but I'm not an expert.
The reader can see the rope that is looped around the top of the poles and tied to a stake in the center on the tepee. It also had a liner on the inside to stand against thirty below winter nights. Most had a half ceiling to hold the smoke and heat from buffalo chips a little longer before it escaped through the top. Many had one buffalo tail left on a hide directly in the back to help the woman orient the door. Flaps could be turned to draw smoke away in the wind or could be closed.
This is just a sprinkling of things that would have gone unnoticed to the stranger. Different tribes could identify each other from long distances by the shape of their head dresses, and other features known only to them and a few white trappers.