⏵ Course guide · Oregon waterfall trail festival
Silver Falls Trail Runs packs a 5K, 7 Miler, Half Marathon, Marathon, and 50K into one October weekend at Oregon's largest state park, running past and under the famous Trail of Ten Falls. I will walk you through where the distances split apart on course, then give you a pacing and fueling plan built for the Marathon and 50K's no-walking cutoffs, plus free tools to dial in your own numbers.
These facts come from the official Silver Falls Trail Runs site. Check the current year details, cutoffs, and aid stations before you commit. Race logistics change year to year.
All five distances start and finish at the South Falls Day Use Area. The shorter distances loop close to the canyon and rim trails, while the Marathon and 50K split off after the North Falls aid station (mile 6) into remote backcountry singletrack before rejoining the canyon trail for the finish.
The 5K (658 ft of gain) heads out the Maple Ridge Trail, drops into the canyon under two waterfalls, and climbs back to the top of South Falls. The 7 Miler (980 ft of gain) adds the rim trail and most of the Trail of Ten Falls before finishing with a climb up "Nut Cracker Hill." Both allow walking and have no aid stations, so carry what you need.
The half runs 1.1 miles of paved road to spread the field out, then follows canyon trail, Maple Ridge Trail, and rim trail past several waterfalls with 3 well-stocked aid stations. This route, the last several miles of the canyon trail in particular, is the same stretch the Marathon and 50K rejoin near the end of their own longer loops.
Both the Marathon and 50K follow the half marathon course out to the North Falls aid station (mile 6), then split off into the park's back country trails for their own extended loop, crossing a creek along the way (mile 9 for the marathon, mile 12 for the 50K), before rejoining the half marathon's canyon trail route near the end (mile 19.1 for the marathon, mile 24.4 for the 50K) for the scenic run past the waterfalls back to South Falls. Neither distance allows walking or pets.
The Marathon and 50K both carry intermediate cutoffs at Smith Creek Village and North Falls, not just an overall finish clock, so your pacing plan needs to hit specific waypoints on time.
The Marathon must clear Smith Creek Village by 11:00 AM and North Falls aid station #5 by 1:30 PM, ahead of a 3:30 PM finish cutoff. The 50K has the same two checkpoint times at its own Smith Creek Village and North Falls #6 stations, ahead of the same 3:30 PM finish. Build your pacing plan around these two gates specifically, not just the overall 7.5 or 8 hour limit, since missing either one ends your race regardless of how much time you have left on paper.
Unlike the 5K, 7 Miler, and Half, the Marathon and 50K do not allow walking the entire course. A grade-adjusted pace target for the climbs, run rather than power-hiked, gives you an honest number for what effort keeps you moving continuously through the backcountry loop's hills.
⏵ Free tools to pace this course
Mid-October in the Willamette Valley can be cool and shaded under the tree canopy, especially the canyon sections, so fueling and pacing both need to account for the darker, damp conditions the falls create.
Aim for roughly 60 to 90 grams of carbohydrate per hour. Every aid station on every distance stocks water and Heed electrolyte, and the Marathon and 50K stations add Hammer gels, boiled potatoes, salt, bananas, nut bars, M&Ms, pickles and pickle juice, trail mix, chips, fruit snacks, cookies, and soda. This is a cupless race for the ultra distances, so bring a refillable bottle and let volunteers fill it rather than relying on cups that are not provided.
Sodium in the 300 to 500 mg per liter range covers most runners on a cool, shaded October day, moving toward the higher end of 500 to 700 mg per liter if you run warm or the day is unseasonably mild. The canyon trail sections stay cool under tree cover even when the exposed portions warm up, so adjust your intake by terrain segment, not just by clock time.
⏵ Build your fueling plan
Get a carb, sodium, fluid, and caffeine plan per hour built for your weight, your goal time, and a cool Oregon canyon day with the free ultra fueling calculator. Browse the rest of the free running tools at the tools hub.
⏵ Train for it with Summit Line
Get a race-day plan built around YOUR fitness, this exact waterfall-loop course profile, and your projected splits. Summit Line reads your real training, builds a plan for hilly, no-walking cutoffs, and rehearses your fueling so race day is something you execute, not guess at.
It depends entirely on which distance you pick. The 5K and 7 Miler are genuinely approachable, 658 and 980 feet of gain respectively, run under the falls on well-marked trail with brisk walking allowed. The Marathon and 50K are a different race: mud, rocks, a creek crossing, and a course that splits off from the half marathon route into remote backcountry singletrack for 13+ miles before rejoining near the canyon trail. Those two carry a strict no-walking rule and real cutoff pressure.
The official course pages publish exact elevation gain for the two shortest distances: 658 feet for the 5K and 980 feet for the 7 Miler. The Half Marathon, Marathon, and 50K pages describe "elevation gain with mud, rocks" and hills but only show the actual gain figure on an interactive scroll map rather than as a stated number, so treat those three as genuinely hilly without a confirmed total.
This is a cupless race for the ultra food distances: bring a refillable bottle. Aid stations carry water and Heed electrolyte at every stop, with Marathon and 50K runners also getting Hammer gels, boiled potatoes, salt, bananas, nut bars, M&Ms, pickles and pickle juice, trail mix, chips, fruit snacks, cookies, and soda. Aim for 60 to 90 grams of carbohydrate per hour on the longer distances, and sodium in the 300 to 700 mg per liter range. There is a drop area at aid station #1 (mile 3.3) for anyone shedding a warm-up layer. Build your own numbers with the free ultra fueling calculator before race day.
The 5K has a 1 hour 30 minute limit, the 7 Miler 3 hours, and the Half Marathon 4 hours, all of which allow brisk walking. The Marathon has a 7 hour 30 minute overall limit with intermediate cutoffs at the Smith Creek Village aid station (11:00 AM) and North Falls aid station #5 (1:30 PM). The 50K has an 8 hour overall limit with its own intermediate cutoffs at Smith Creek Village (11:00 AM) and North Falls aid station #6 (1:30 PM). Walking the entire course is not allowed in the Marathon or 50K.
Every distance touches some of the "Trail of Ten Falls," running under and near several waterfalls through Oregon's largest state park. The shorter distances (5K, 7 Miler, Half) stay closer to the canyon trail, rim trail, and Maple Ridge Trail. The Marathon and 50K split off into remote backcountry trail after the North Falls aid station (mile 6), crossing a creek (mile 9 on the marathon, mile 12 on the 50K) and running through huge fir trees and single track before rejoining the half marathon's canyon trail route for the scenic run back to the finish.
The 50K is a legitimate first-ultra candidate if you respect the no-walking rule and the intermediate cutoffs. Eight aid stations across 31.9 miles gives frequent support, and the course circles back through the most scenic canyon and waterfall trail for the finish, which is a strong incentive to keep moving. The event sells out every year since 2010, so register the moment the August 1 window opens if this is your target race.
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<a href="https://runsummitline.com/guides/silver-falls-trail-runs">The Silver Falls Trail Runs course guide</a><iframe src="https://runsummitline.com/embed/race/silver-falls-trail-runs" style="width:100%;max-width:420px;height:180px;border:0;" loading="lazy" title="Silver Falls Trail Runs course guide by Summit Line"></iframe>This guide is independent and for planning only. The course details, dates, cutoffs, and aid stations come from public sources and can change year to year, so confirm the current specifics with the official race before you register or run. The fueling and pacing advice is general and not medical advice.
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