Some family resemblances are real, provided they are offered as tendencies and not as a creed.
Land is specific. Sacred geography is generally attached to named places: a mountain, a spring, a stretch of river. This is why removal was a religious catastrophe and not only an economic one, and why current litigation over sites such as Oak Flat, Bears Ears and the Black Hills is religious litigation.
Animals and other beings are persons. Hunting and farming traditions across the continent are commonly framed as relationships carrying obligation, in which game gives itself and withdraws if insulted. Read as ecology this is a distortion; read as etiquette between persons it is closer.
Oral transmission is the norm. These are traditions without scripture, carried in language, and the loss of a language is the loss of the ceremony conducted in it. Language revival programmes are therefore religious programmes as much as educational ones.
Specialists are trained and particular. The English word shaman, imported from Siberia, flattens a range of quite different offices: Lakota wicasa wakan, Dine hataalii, Yupik and Inuit angakkuq, Haudenosaunee faithkeepers. Their training, authority and inheritance differ.
Much of it is closed. Restricted knowledge is normal rather than exceptional. A great deal of published ethnography was obtained by pressure, payment or deception, and its accuracy is not the only question about it. Where an account here is thin on ceremonial detail, that is usually deliberate.
And the traditions are alive. Ceremonies suppressed within the last century are being conducted now, sometimes continuously through the suppression, sometimes reconstructed from elders who remembered. Writing about them in the past tense, which older reference works do almost universally, states something false.