Trail and Area Closures and Advisories
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.
The closures listed below are currently in place. Please review all closures and advisories before you visit OSMP.
Trail Closures, Advisories and Fire Bans
Temporary trail closures, advisories and fire bans will be posted on this page; please check before your visit.
The majority of Open Space & Mountain Parks trails are open. Please respect trail closures for the remaining long-term trail repair projects
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
OSMP closes certain areas from Feb. 1 to July 31 every year to protect cliff-nesting raptors.
OSMP closes certain areas from March 15 to Oct. 31 every year to protect nesting burrowing owls.
Two areas on OSMP are closed from Nov. 1 to July 31 every year to protect bald eagle nesting and roosting activity.
OSMP and Parks & Rec close certain areas from March 15-Sept 10 every year to protect nesting osprey, northern harriers and American bittern.
Grassland Ground Nesting Bird Closures
OSMP closes certain areas from May 1 to July 31 every year to protect grassland ground nesting birds.
Bat Roosting Site Closures
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
Dry Creek and Boulder Creek downstream of Valmont Road are closed year round because of the non-native, invasive New Zealand Mudsnail.
The closures listed below are not currently in place. You may review the maps for reference, but these areas are not currently closed.
Lifted Raptor Closures
Nesting raptor closures that have been lifted before the July 31 opening date.
Seasonal Leash Restrictions
Seasonal leash restrictions are in place from Aug. 15 to Nov. 1 every year in certain areas that are frequent foraging locations for bears.