Los Alamos National Laboratory

Los Alamos National Laboratory

Delivering science and technology to protect our nation and promote world stability

Taking Care of our Trails

Continued access and use of Los Alamos National Laboratory trails is contingent upon being good stewards of these federal lands.
June 7, 2017
Hikers walk along the Lion Cave Trail on April 14, 2017 as part of Los Alamos National Laboratory’s Earth Day Events.

Hikers walk along the Lion Cave Trail on April 14, 2017 as part of Los Alamos National Laboratory’s Earth Day Events.


  • Environmental Communication & Public Involvement
  • P.O. Box 1663 MS K491
  • Los Alamos, NM 87545
  • (505) 667-6168
  • Email

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Spring ahead with these trail reminders

The weather is getting nicer and the days longer. This means that people want to get outdoors and use our great Laboratory trails. Here are a few things to consider while heading out for the trails in early spring.

There are seasonal wildlife restrictions for protecting Mexican spotted owls that began on March 1, which affect some of our LANL trails. Signs on these trails indicate if they are closed for biological surveys. Please stay out of these areas until they have been cleared for recreational use.

This is a muddy time of the year with daily freezing and thawing happening along many LANL trails. Please do not walk, run or bicycle on muddy trails. It damages the trails and is not safe.

Be courteous to others when using LANL trails. Bicyclists must slow and yield to pedestrians. In some cases, inconsiderate and intimidating behavior has been observed. This is not acceptable and violators will be reported to Laboratory management.

Trail Use

Some Laboratory trails are open to the public whereas others are only open to Laboratory badge holders. Some trails allow dogs, horses, and bicycles while these are prohibited on other trails. It is your responsibility to understand the rules of a particular trail.

Trails are open from dawn to dusk, however trails and trail segments shown in red on trail maps are closed to all entry.

Hike open trails at your own risk; carry water, and beware of weather conditions, hazards, and wildlife.

Please leave no trace and pack out your trash.

Trail Monitoring

Laboratory trails in the White Rock area (TAs 70/71) are actively patrolled by Bandelier National Monument rangers through an agreement between the National Park Service and the Department of Energy.

Other Lab trails may be monitored by the Laboratory's Protective Force.

You are required to acknowledge and comply with law enforcement requests and directions.

Prohibited Activities & Items

The following activities and items are strictly prohibited on Laboratory trails.

  • alcohol consumption
  • camping
  • collecting natural or cultural materials
  • digging or ground disturbance
  • disorderly behavior
  • disturbing archaeological resources
  • dumping or disposal of trash
  • firearms
  • fires
  • fireworks
  • geo caching
  • hunting or trapping
  • memorialization
  • motorized vehicles (unless performing official LANL business)
  • smoking
  • weapons
  • wood gathering
Questions, Comments & Concerns

Report illegal or suspicious activity to: (505) 667-6211

To send general inquiries or feedback: trails@lanl.gov

Dan Pava, Chair
LANL Trails Working Group
(505) 667-7360

Karla Sartor
LANL Trails Working Group
(505) 667-8719

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