Wow while on vacation, call the Travel and Tourism Bureau in the State Capitol of each state you'll be passing through, and check the Internet sources mentioned above. Wow during the year. A complete listing of Pow Wows and gatherings in the U.S. and Canada could, and does, fill a book. I highly recommend the annual Pow Wow Calendar as the most complete guidebook to Native events available. Wow, you're home free.
Flyers are always at the announcer's booth, and in many vendor booths.
Pow Wow scheduling information, be sure to verify the dates and locations before making the trip. Wow you want to see before you make the call. If you want to visit a traditional gathering that does not have competition, or prefer to experience the excitement of competition dancing, both are available. When you call to confirm dates, location, camping, etc., ask if it is a competition event or not. No one will mind the questions.