Leadville Trail Marathon 2025

• High-altitude challenge: Peaks at 13,185 feet, highest trail marathon in the USA.
• Tough terrain: 26.4 miles on dirt roads and single track through historic mining areas.
• Weather readiness: Be prepared for snow and thunderstorms; descend quickly if needed.
• LT100 qualifier: Earn coins based on performance, with a lottery for entry.
• Course markings: Clear directions with pink-and-black ribbons and flour arrows.

The Leadville Trail Marathon is one of the most challenging and prestigious trail running events in the United States. It covers approximately 26.2 miles (42.2 kilometers) through the rugged and picturesque Rocky Mountains. The course features a mix of single-track trails, steep ascents, technical descents, and physically and mentally demanding terrain. Participants must navigate rocky paths, dense forests, and alpine meadows while tackling an elevation gain of over 6,000 feet (1,800 meters). The race starts and finishes in downtown Leadville, taking runners on a breathtaking journey through the heart of Colorado's wilderness. The marathon is part of the Leadville Race Series, which includes other iconic endurance events such as the Leadville Trail 100 Run and the Leadville Trail 100 Mountain Bike Race. The Leadville Trail Marathon is also a qualifying event for the Leadville Trail 100 Run, with up to 25 slots available based on the total number of registered runners and performance. The race is known for its supportive and enthusiastic atmosphere, with spectators and volunteers lining the course to encourage and assist the runners. Finishing this marathon is a tremendous achievement that tests endurance, mental strength, and resilience, earning participants the satisfaction of conquering one of the country's most challenging trail running events. The Leadville Trail Marathon is held in mid-summer when the weather in Leadville is generally pleasant, but runners should be prepared for varying conditions and sudden weather changes due to the high altitude. Aid stations are strategically placed along the course, offering hydration, nutrition, and medical support to ensure the safety and well-being of participants.

Expect temperatures between 36-68°F (2-20°C) during the Leadville Trail Marathon in late June, ideal for early morning starts with a gradual warm-up. While there's a slight chance of light rain, conditions often remain dry. Take advantage of the long daylight hours for a scenic run in this high-altitude setting.

The Leadville Trail Marathon is a thrilling adventure for trail runners, offering a rigorous journey through the heart of the Rocky Mountains. This course is renowned for its rugged terrain, featuring singletrack trails, dirt mining roads, and rocky ascents and descents. Runners will encounter a significant elevation gain of around 6,000 feet, with the course reaching its zenith at Mosquito Pass, at over 13,000 feet. Here, participants are rewarded with stunning 360-degree views of the surrounding peaks.

Key highlights include the ascent of Bald Mountain, where panoramic vistas of Turquoise Lake await. The course's variety demands adaptability, with steep climbs often requiring strategic hiking. The high altitude and unpredictable weather add to the challenge, occasionally bringing swirling winds and snow.

Despite these challenges, the marathon is well-supported with enthusiastic volunteers and well-stocked aid stations, ensuring runners have a rewarding experience. This marathon is a must for those seeking a demanding yet breathtaking trail running adventure.

When visiting Leadville, Colorado, for the Leadville Trail 100 ultramarathon, you'll find a captivating mix of outdoor adventures and historical charm. Nestled at an elevation of 10,152 feet, it's essential to arrive a few days early to acclimate to the altitude. Secure accommodations well in advance, as the town fills quickly during race weekend. Renting a car is advisable for exploring the area and reaching race points.

Leadville's historic district, particularly along Harrison Avenue, offers a delightful blend of Victorian architecture, dining, and shopping. For nature enthusiasts, Turquoise Lake provides a picturesque setting for summer fishing and boating, while nearby Mount Elbert and Mount Massive invite exploration of Colorado's towering peaks. Don’t miss the scenic Leadville Colorado & Southern Railroad for breathtaking views of the San Isabel National Forest.

Cultural highlights abound with the Tabor Opera House, a testament to 19th-century ambition, and the intriguing House with the Eye. The Temple Israel Museum offers insights into pioneer Jewish life, and the Lake County Public Library is a treasure trove for genealogy enthusiasts. After exploring, indulge in local cuisine at spots like High Mountain Pies and the Golden Burro Café or browse the antique shops along Main Street for unique finds. A scenic drive through Independence Pass provides a stunning backdrop to your Leadville adventure.