Trail Days – Sustainable Recreation Saturdays

Since 2009 the Mammoth Lakes Trail System and Inyo National Forest have been teaming up for the annual Trail Days Stewardship events. These fun and challenging public trail stewardship events take place on various Saturday mornings throughout the summer. All ages and ability levels are welcome. Each event starts with a free bagel breakfast followed by half a day of trail work, a free lunch and lots of raffle prizes!

Details about Trail Days are on

New Sherwins Area Trails

The Sherwins Area is south of the Town of Mammoth Lakes and offers a diverse landscape for outdoor exploration, exercise and fun. Non-motorized, multi-use trails like the Mammoth Rock Trail have been a part of the Mammoth Lakes Trail System for decades while other trails in the Sherwins like the Meadow Trail Connector and Mammoth Rock Trail Connector have been constructed in recent times by the MLTS Trail Crew. In September 2019, the MLTS Trail Crew completed a segment of single track that was necessary to create a 4 mile contiguous single track loop for people to use in the Sherwins.  More fun new sustainable trails and a trailhead are planned in this area that will expand opportunities and support trail users. With great access right next to Town, the Sherwins Area will continue to be an important part of the MLTS Program.

More information coming soon at

MLTS Trail Maintenance

In the spring of 2016 the Town of Mammoth Lakes and Inyo National Forest formalized an agreement for soft surface trail maintenance for trails within the Town boundary. There are about 30 miles of soft surface USFS trails that are included as part of the trail maintenance program. Each season, problems are first identified using GPS/GIS tools. The data collected informs our strategy for trail maintenance throughout the season. Over time, areas that have recurring problems will be considered for reroute projects. Popular trails like the Mammoth Pass Trail, Duck Pass Trail, and Heart Lake Trail have been maintained and reconstructed to create a more sustainable trail system.

More information coming soon at

Panorama Dome Mountain Bike Trail Reroute

A segment of the Panorama Mountain Bike Trail needed a long term solution to seasonal muddy conditions due to its poor location in a flat area. The MLTS Trail Crew designed and constructed a reroute of this segment in July/August of 2019. The trail now follows a sustainable rolling contour alignment and offers trail users a fun single track experience.

Check it out on!

Shady Rest Winter Trails

The Town of Mammoth Lakes in partnership with Inyo National Forest provides several miles of non-motorized, multi-use winter trails located between Shady Rest Park and the Mammoth Lakes Welcome Center. The winter grooming program in Shady Rest has been operating for many years and with each season, we continue to improve the level of service and wayfinding signage. Winter fat biking, Nordic skiing, and snow shoeing are all welcome activities on the Shady Rest winter trails. The grooming operation can begin with at least 18 inches of snow pack. The trails are groomed after each storm and each afternoon/evening.

More information coming soon at

New Maps On Trail System Signs

In summer of 2019 all of the maps embedded in the Mammoth Lakes Trail System signage received a much needed update. The old out-of-date maps are now being replaced with new panels to reflect the most accurate on the ground information. As part of this major effort, the MLTS team also made a thorough review of the cartography and symbology resulting in major upgrades to the look and feel of the maps for readability and functionality. Look for the new maps out on the pathways around town and in the Lakes Basin!

Click here for more info on Signage & Wayfinding

Trail Conditions Online

The new Trail Conditions page on now provides alerts about system trail conditions, work being done, and problem areas during the summer season. The page also includes handy weather links to NOAA, the “Dweeb Report” and the Tahoe Report. It's also the best place to find information about Shady Rest grooming conditions in winter, and a good place to keep up on avalanche forecasts pulled from Eastern Sierra Avalanche Center. Access it by clicking the "Trail Conditions" link in the upper right hand corner of the site at any time. Information is reviewed and updated each week (or as needed) by the MLTS Crew, and while it can’t cover everything in the region it's a fantastic resource for local need-to-know updates.

Add it to your bookmarks to stay in the know!

Mammoth Trails Committee (The MTC)

Mammoth Lakes Recreation (MLR) convenes and facilitates the Mammoth Trails Committee (The MTC) a sub-committee which provides oversight for the entire Mammoth Lakes Trail System. Their regular meetings occur approximately four times a year and are open to public input. Click here to view upcoming meeting dates and archived meetings on Granicus.

For more information visit

‘There Is No Poo Fairy!’ Program – Clean Trails!

Pet waste accumulation is a serious problem in Mammoth Lakes, especially troubling as our area serves as an important watershed for the state of California. To combat this hazardous waste accumulation problem, the Mammoth Lakes Trail System (MLTS) has installed twelve new dog waste receptacles stocked with branded "there is no poo fairy" bags at critical areas. The MLTS is working hard to ensure that our trails and trailheads stay clean for all to enjoy.

More information coming soon at

MLTS Handouts

The Mammoth Lakes Trail System produces a number of very useful handouts - The Winter Recreation Handout, The Summer Recreation Handout, the Shady Rest Winter Trails Handout, and the E-Bike Information Handout. They are available seasonally on the home page (link) to view, download or print. The handouts include up-to-date maps and etiquette information to help everyone get out and enjoy our trails all year round - super useful for visitors and locals alike!

Check out the current handouts on the home page
Additional Resources