how might history have unfolded differently if the united states had not forced Native Americans to relocate to reservations?

For starters we would not as many states as we do now for one. Two, America's structure of government could have been different as well with out the people to be in the right place at the right time. Lastly, the gold/silver/coal rushes would not have been a big part for the industrial age. Also boom towns would maybe not have existed.