News & Announcements

Restrictions on Most Plague-Affected Prairie Dog Areas Have Ended

Rescheduled 4th of July Fireworks show at Dick’s Sporting Goods Park still planned for Sept. 7

Post Date:09/06/2019 6:45 AM

Numerous sites in Commerce City where plague-infected fleas affected local prairie dog colonies reopened on Thursday, September 5, 2019:

In Commerce City, the Prairie Gateway Open Space is open, however the open space area west of the USPS Denver Bulk Mail Center remains closed from E. 56th Avenue to E. 60th Avenue, also marked with do not enter signage.

Dick’s Sporting Goods Park is open to all activities including the rescheduled 4th of July fireworks show after the Colorado Rapids game on Saturday, September 7. However, the strip of dirt south of parking lots G and H and north of the USPS Denver Bulk Mail Center remains closed and do not enter signs are in place. Updates are available at

The Rocky Mountain Arsenal National Wildlife Refuge is opening additional hiking trails. For up-to-date information about visitor access and activities, please visit

First Creek at DEN Open Space is fully open. The area is located between the Rocky Mountain Arsenal National Wildlife Refuge and Pena Boulevard, north of 56th Avenue on Buckley Road.

Our highest priority is the health and safety of our residents and the Tri-County Health Department will continue to monitor these remaining closed, plague-impacted areas for evidence of fleas or prairie dog die-off. The risk for human cases of the plague remains low. For more information, visit the Centers for Disease Control and Prevention (CDC) website at

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