July 4th, the Fourth of July or Independence Day. It doesn't matter what you call it, it's way too big for just a one day celebration in Colorado. This year, we'll start the Independence Day celebrations June 30 and carry them through July 4. Expect fireworks, big time concerts, festivals, baseball and lots of family friendly things to do in Colorado. See all things to do happening June 30 to July 4, 2017.