After the Boston Marathon attack, runners took to social media to declare that they wouldn't be scared away from participating in the upcoming Colfax Marathon and BolderBOULDER -- and they were as good as their word. The Colfax Marathon went off without a hitch, and yesterday, increased security measures didn't prevent a huge throng from striding through Boulder. The BolderBOULDER is sharing some great photos on its Facebook page. Check out highlights below.
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More from our Things to Do archive: "Photos: Colfax Marathon runners take it to the street."