Went to Granby, Colorado on vacation in June 2011 and went to Ian's after I read reviews here on tripadvisor. The Cinnamon Rolls and Raspberry Scones we ordered were great. Looks like Ian's is not open on a regular schedule as it was closed on a few occasions when we drove by going to RMNP/Grand Lake (during normal business hours) - so you may want to call ahead to make sure he is open. Ian was very nice to us and based on that and the good baked "goods" I can see how the locals would be loyal to him. Give Ian's a try - you will like.
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