How many poles are in a blackfoot tipi?

There was never a fixed number of lodgepoles in a moyis(Blackfoot for a tipi-style lodge). The basis was always a framework of 4 tied poles; all the others were simply leaned against this base. The number of poles would depend on the size of the moyis - some were made with a cover of about 12 buffalo hides, but larger ones used 20 and would naturally need more poles.

While Crow tipis used very long poles (having about 10 feet of pole showing above the cover), Blackfoot poles were always shorter (about 6 feet taller than the cover).