Rock climbing?!?!?!?

okay so I just got back from a trip to Canada where I went rock climbing for the first time in a town called Squamish. It was awesome! It sucks though because I live in Nebraska where there are pretty much no rock climbing places except crappy indoor walls. I was wondering if anyone has been to any really good rock climbing places in Iowa, Wyoming, South Dakota, or Colorado (i know there are a ton of places here). It would be good if the places were located on the side of the state closest to Nebraska and also if they would be good for beginners. Thanks so much. I love rock climbing!!