Arapahoe County Open Space parks close at sunset unless otherwise posted. Cherry Creek State Park closes at 10 PM or posted hours. Aurora parks close 11 PM to 5 AM. Centennial parks close dusk to 5 AM. After-hours presence is trespassing enforceable by the Arapahoe County Sheriff or city police.
Park hours in Arapahoe County vary by operating authority. Arapahoe County Open Space parks (17+ parks including deKoevend Park, Lone Tree Creek, Cheyenne-Arapahoe Park, Flintwood Hills) close at sunset unless otherwise posted per Arapahoe County Open Space rules. Cherry Creek State Park (operated by Colorado Parks and Wildlife) closes at 10 PM with entry gates locked; posted hours vary seasonally per 2 CCR 405-1 §108. Aurora City Code §94-200 closes city parks 11 PM to 5 AM daily; sports fields with lights may operate until 10 PM. Centennial Municipal Code §9-3-50 closes city parks from dusk until 5 AM. Greenwood Village and Cherry Hills Village parks have similar sunset-to-sunrise closures. Cherry Creek Valley Ecological Park and Plains Conservation Center have stricter daytime-only rules. After-hours access is trespassing under C.R.S. §18-4-504 (3rd degree criminal trespass, petty offense) with enhanced penalties for unauthorized camping, vandalism, or drinking. Authorized special events with permits can extend hours. Arapahoe County Sheriff patrols unincorporated park areas; Aurora PD and other municipal police handle city parks.
After-hours trespassing: $50 to $250 citation. Cherry Creek State Park violation: $75+ under 2 CCR 405-1. Unauthorized camping: $100 to $500. Vandalism or alcohol during closure: Class 2 misdemeanor up to $1,000 and 120 days.
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See how Aurora's park curfew rules stack up against other locations.
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