There are remnants, certainly, but the culture is inextricably linked with the lifestyle and European settlers destroyed that lifestyle. I think my Viking and Saxon analogy was a good one. You just can't experience those cultures authentically in a modern world.
I knew some native Americans in Kansas. One was a good friend of mine. He grew up on a reservation and had a seat on his tribe's council. He was the one who first told me that native American culture is dead, clung to now only by the elderly. The young people all leave the reservation. They aren't particularly interested in history. They just want to head out into the world and be normal Americans. The ones who stay tend to have problems with alcohol and drugs and spend their government checks getting high. Again, this was told to me by a tribal leader. I have to accept it to be true, at least of his tribe.