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THE COURSE
This Tahoe Rim Trail Endurance Runs take place on high elevation alpine and sub-alpine forest trails and dirt roads in the Carson Spur of the Sierra Nevada Mountains. The event is located on the northeast side of Lake Tahoe. All distances begin and end at the Spooner Lake State Park, which is at 7,000 feet. The highest point of the event is just below the 9,214 foot Snow Valley Peak (which also provides one of the best views on the course). The low point on both courses is at the bottom of the now "infamous" Red House Loop (A Taste of Hell) at approximately 6800 feet.

From the start near the shore of Spooner Lake the course follows the dirt, North Canyon Road for approximately 1 mile before it ventures onto the Marlette Trail. The Marlette Trail meanders through conifers and Aspen groves as it climbs approximately 1,500 feet before descending about ½ mile to the shore of tranquil Marlette Lake.

From Marlette Lake (7823 feet) you'll continue to climb on dirt roads to the Hobart Road aid station at 8120 feet.

After leaving the Hobart Road aid station the course climbs past Marlette Peak and Harlan Peak before descending to the Tunnel aid station at the junction of the Tahoe Rim Trail and the Tunnel Creek Road.

After departing from Tunnel Creek aid station the course makes an approximate 6.3-mile loop to Red House aid station and back (with a significant climb near the end of the loop).

Upon returning to the Tunnel Creek aid station the 50M/100M course will travel approximately 6-miles north along single track section of the Tahoe Rim Trail. This section is mostly rolling with breath-taking views of both Lake Tahoe and the Washoe Valley. At the Incline Creek trail junction the course drops down towards Incline Village, offering spectacular views of the North Shore of Lake Tahoe. This new section of the course will provide views of Lake Tahoe not many but locals have seen. The Incline Creek trail will plunge down the mountain for approximately four miles and a loss of 2,000 feet of elevation, following the creek with many dives including twists and turns. As the trail flattens out towards the bottom you will come into the Tyrolean Village area directly behind homes. 100 Milers on your second pass in the middle of the night or early in the morning please be respectful of the residents there and keep the chatter to a minimum until you clear this area. Once you come to the pavement it is just a short ¼ mile to the Diamond Peak Lodge parking lot area. Proceed to the lodge where the aid station will be. This will be the 30 mile and 80 mile aid stations. From there the course will follow the dirt service road up the ski run and onto the Crystal Ridge ski run up and over the top of Diamond Peak resort at 8540 feet for a 1700 foot climb in just under 2 miles. The course drops  50 meters down to the Bull Wheel aid station (water and typical aid station fair only. No hot food) on the Tahoe Rim Trail. The course then returns to the Tunnel Creek Aid Station 3 miles south. (Turn right on the TRT) The average elevation is between 8000 and 8800 feet dropping to a low at 6888 at the Diamond Peak Lodge

From the Tunnel Creek aid station, the course will follow the Tahoe Rim Trail south towards the Spooner Summit trailhead passing both Marlette Peak and Snow Valley Peak (and visiting both the Hobart Road and Snow Valley Peak aid stations). From the Snow Valley Peak aid station the course makes about 5.4 mile descent before reaching the Spooner Trailhead aid station at Highway 50 and connecting with the Spooner Lake trail for the final 1.7 miles to the finish.