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Trail and Area Closures and Advisories

Open Space and Mountain Parks (OSMP) makes every attempt to keep this page as up to date as possible. However, some closures and trail advisories are made on an emergency basis for the safety and well-being of our visitors, wildlife and natural resources. Please watch for these signs during your visit. Descriptions of closures and links to more information, including maps, are below.

Trail Map:

OSMP's  interactive trail map now includes trail closures - an easy option to check before your trip!

Current Closures

The closures listed below are currently in place. Please review all closures and advisories before you visit OSMP.

Trail Closures, Advisories and Fire Bans

Photo of closed trail Temporary Closures, Advisories and Fire Bans

Temporary trail closures, advisories and fire bans will be posted on this page; please check before your visit.
 


The area closures below do not close any designated hiking trails (climbing access trails may be affected). Please be sure to check for any leash restrictions if you are bringing a dog.

Seasonal Raptor Closures

Photo of Osprey by Wendy Marie Stewart Osprey, Northern Harrier & American Bittern Closures March 15 - Sept. 10

OSMP and Parks & Rec close certain areas from March 15-Sept 10 every year to protect nesting osprey, northern harriers and American bittern.
 

Photo of Burrowing Owls by Perry Conway Burrowing Owl Closures March 15 - Oct. 31

OSMP closes certain areas from March 15 to Oct. 31 every year to protect nesting burrowing owls.
 

Seasonal Leash Restrictions

Photo of a black bear Seasonal Leash Restrictions Aug. 15 - Nov. 1

Seasonal leash restrictions are in place from Aug. 15 to Nov. 1 every year in certain areas that are frequent foraging locations for bears.
 

Bat Roosting Site Closures

Photo of bats sleeping Bat Roosting Site Closures - Year Round & Seasonal

Some areas are permanently closed to prevent the spread of White-Nose Syndrome; other areas have seasonal closures to protect roosting bats.
 

New Zealand Mudsnail Closures

Photo of New Zealand Mudsnails by Dan L. Gustafson New Zealand Mudsnail Closures - Year Round

Dry Creek and Boulder Creek downstream of Valmont Road are closed year round because of the non-native, invasive New Zealand Mudsnail.
 


Inactive Closures

The closures listed below are not currently in place. You may review the maps for reference, but these areas are not currently closed.

Seasonal Raptor Closures

Photo of Peregrine Falcon Cliff-Nesting Raptor Closures Feb. 1 - July 31

OSMP closes certain areas Feb. 1 to July 31 every year to protect cliff-nesting raptors.

 

Photo of Bald Eagle by Klaus Girk Bald Eagle Closures Nov. 1 - July 31

Two areas on OSMP are closed from Nov. 1 to July 31 every year to protect bald eagle nesting and roosting activity.
 

Lifted Raptor Closures

Photo of Prairie Falcon Inactive Raptor Closures

Nesting raptor closures that have been lifted before their scheduled opening date.

 

Grassland Ground Nesting Bird Closures

Photo of Vesper Sparrow by Thomas Wilberding Grassland Ground Nesting Bird Closures May 1 - July 31

OSMP closes certain areas from May 1 to July 31 every year to protect grassland ground nesting birds.
 

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