DENVER (AP) -- Thousands of people are expected to join an unofficial counterculture holiday celebrating marijuana in Colorado and Washington this coming weekend.
And the events and crowds will likely test the limits of new laws permitting pot use by adults.
More than 50,000 are expected to light up outdoors in Denver's Civic Center Park on April 20 to celebrate marijuana legalization. Thousands more are headed to Denver for the nation's first open-to-all Cannabis Cup, April 20-21.
Marijuana activists consider April 20 a day to celebrate the drug and push for broader legalization.
Marijuana remains illegal under federal law, and its sale without a doctor's recommendation isn't allowed yet in Colorado or Washington.
Neither state allows open and public use of the drug. But authorities largely look the other way at public pot-smoking.
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