Even as 10,000-plus people were lighting up at the Denver Civic Center Park 4/20 rally, about the same number were doing likewise on CU's Norlin Quad in Boulder, where the vibe was less commercial and more about raising a sweet-smelling cloud over the campus.
We sent photographer Hunter Stevens to capture the scene. Check out her shots below.
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More from our Marijuana archive: "4/20 in Boulder preview: 'An orgasm of cannabis consumption.'"