LoBo Trail 

Longmont-to-Boulder (LoBo) Trail

The LoBo Trail is open including the section between Ogallala Rd and N 95th St. Use caution in that section as repairs are still needed.

The Longmont-to-Boulder (LoBo) Regional Trail is a 12-mile planned trail that is part of the trail system in Gunbarrel, Niwot, and County Open Space Properties connecting the City of Boulder with the City of Longmont.

 Your Visit

LoBo Trail

Flood Damage Repair

Work to repair the flood damaged section at Left Hand Creek upstream of 95th Street/Hover Street is scheduled to be bid in May. Construction is anticipated for June and will take two to three weeks to complete. To receive project updates please contact Dave Webster.


  • Temporary facility at Niwot Trailhead


  • Cottonwood Trailhead (City of Boulder)
  • Lefthand Creek Park (City of Longmont)
  • Lefthand Valley Grange
  • Monarch Trailhead
  • Niwot Trailhead
  • Twin Lakes Trailhead

Keep in Mind

  • Unauthorized motor vehicles are prohibited including electric bikes, scooters and mopeds.
  • Stay on the designated trail as private property borders the trail in several places.
  • There are several areas where you need to use on-street connections.

 Map & Directions


See the list of completed trails sections, current and future projects on the project page.


Parks & Open Space

Staff Directory
Submit a Question

Parks are open sunrise to sunset
Check Trail Conditions