If they did have progress, it would've been very slow. Are there any animals they could have domesticated? An odd question, sure, but you'd be surprised how much of an advantage horses were to early civilizations. One thing that comes to mind is since the Americas had very few domesticateable animals, llamas and alpacas being the only ones that come to mind, the civilizations there were stunted. The grand civilizations that did exist where located in the south where the animals in question were found.