TRI Mountain Lake

Embark on a refreshing summer challenge at the TRI Mountain Lake 3M Run, set for Saturday, July 18, 2026, in the picturesque Liberty Township of Great Meadows, NJ. This event is a standalone 3-mile run, newly added to what is famously known as "the hidden gem" of New Jersey triathlons, offering runners a unique opportunity to experience the scenic beauty of Mountain Lake.

The 3-mile course provides true, captivating views as athletes circumnavigate the pristine Mountain Lake and venture into charming local neighborhoods before making their way to the lively finish line near the transition area. This journey is designed to offer a balance of gentle lakeside paths and some slight ascents as you move through the surrounding community, making for an engaging and varied run. Typical race day conditions in mid-July feature highs around 85°F and lows around 63°F, with a 20% chance of precipitation, providing a warm, potentially humid, but generally pleasant atmosphere for racing.

Organized by DASH Multisport and benefiting The Arc of Warren County, this USAT sanctioned event ensures a well-supported and community-focused experience. While specific on-course aid stations for the 3M run are not detailed, participants can expect enthusiastic volunteers and a celebratory atmosphere at the finish, with packaged food and amenities available. The TRI Mountain Lake 3M Run promises an unforgettable summer morning, blending competitive spirit with the tranquil backdrop of one of New Jersey's most beautiful glacial lakes.