Blood Rock
Same Stunning Location, Smarter Course Design
December 5th - 7th, 2025
Oak Mountain State Park, Birmingham, Alabama
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Blood Rock has evolved
What was once known as a True survival test is now Alabama's premier mountain trail adventure
challenging enough to be meaningful, beautiful enough to be unforgettable.
Three Mountain Lakes
Achievable Challenge
Run past three of the most beautiful lakes in Alabama, Summit, Demopolis, and Belcher Lakes - pristine mountain waters that make every mile worth it. These natural gems are your reward for taking on the challenge.
Alabama’s Finest Trails
92+ miles of singletrack through Alabama's largest state park. 11,500 acres of pure trail magic with stunning views around every corner. Explore the amazing Belcher Tract from one end to the other.
The ALABAMA TRail Community
Choose Your Adventure
Four distances, one incredible experience.
Start where you are, grow into youR ultimate potential.
25K
Trail Series Race
Perfect introduction to Blood Rock
16.62 miles, 2,885ft. elevation gain
Experience the Belcher Tract
Part of Southeastern Trail Series
50 Mile
Begin the Adventure
The full Blood Rock experience
Single 51.19 mile loop
8,598ft. elevation gain
Single loop of pure mountain beauty
Pacers allowed after dark
Tough but fair, designed for strong finish rates. Our course evolution means more runners discover they're stronger than they thought, without compromising the adventure.
Join 300 runners who will discover their strength at Blood Rock this year. From first-time trail runners to ultra veterans - everyone finds their place here.
50K
Trail Series Race
Step up to ultra distance
30.18 miles, 5,345ft. elevation gain
See all three mountain lakes
Trail Series points race
100 Mile
The Epic Journey
The ultimate Blood Rock journey
Two 51.19 mile loops
101.79 miles, 17,196ft. elevation gain
Two laps of mountain mastery
44-hour time limit
THE BLOOD ROCK RACES
oAK MOUTNAIN STATE PARK & THE BELCHER TRACT
EXPERIENCE THE FULL BREADTH OF ALABAMA’S LARGEST STATE PARK
From ridge-top views to valley floors
Enjoy gentle roadway sections closed to cars
Persevere through challenging climbs that are not on the map
Explore backcountry sections of the park few people will ever see
Run trails unknown to the public
See secluded pools and waterfalls virtually unknown and unseen
THE CLIMB TO SUMMIT LAKE
This spring-fed quarry lake sits on the mountain crest, your reward for conquering the legendary Crack-in-the-Wall climb. The aid station here offers stunning lake views and the fuel you need to continue your journey.
THE JOURNEY THROUGH THE BELCHER TRACT - THE LAKES
Summit Lake is the highest lake in the tract. Next is Demopolis Lake, then Belcher Lake. Each offers its own unique beauty. These pristine mountain waters provide natural waypoints and unforgettable photo opportunities.
UNPARALLED SUPPORT AND SOUTHER HOSPITALITY AT IT BEST
Aid stations every 5-7 miles with everything you need
Hot soup, cold drinks (bring your own cup)
Hot food all night
Breakfast in the “wee hours”
This is just part of what makes Blood Rock special
What more could any runner want?
Blood Rock 50 Mile Course Map
The 100 is two laps of the 50 mile course
Blood Rock 50 Mile Course - Elevation Profile
You will notice slight variations in distance and elevation gain from one file or map to the next. Distance for the 50 mile loop will range from 51.05 to 51.19. We use CalTopo as our primary resource for creating course maps and measuring distances. Every time you make any change to the map, CalTopo recalculates the course statistics. Every time it recalculates the distances, it is slightly different from the previous calculations. This happens even if you don’t make any changes to the actual route. Since it’s all a “best guess” anyway, and the distance is negligible, it’s not worth spending hours trying to make everything match exactly.
The 50 Mile Course map can be viewed as a single 50 mile loop or by section. Click on the blocks on the left to select.
Download this 50 Mile GPX File to the GAIA App or your navigation device that you plan to carry in the race.
Blood Rock 25K and 50K CalTopo Map and GPX Files
To view individual sections or see the Full Course File. Once the map is open, use the menu on the left. Check or uncheck the sections you wish to see. Click on the “profile” image to see the section or full course profile.
About the 2025 Blood Rock Races
All Blood Rock races are Cupless
All Blood Rock Races are officially Cupless. If you intend to drink cokes, sprite, Mountain Dew, or water at aid stations, you will need your own cup. (Or something to drink out of.) We are no longer providing cold drink cups. We will have insulated cups for hot drinks and soup.
Blood Rock 100 Mile
Blood Rock 100 will take place at Oak Mountain State Park, Alabama’s largest State Park
The race starts and ends at the Meeting Center in the Cabins on Tranquility Lake
The 100 starts at 10:00 AM on Friday, December 5th, 2025
The 100 course is 2 laps of the 50.88 mile course
Due to the extremely difficult and remote nature of the backcountry sections of Blood Rock, we must enforce mandatory cutoffs
The Blood Rock 50 Mile
Blood Rock 50 Mile will take place at Oak Mountain State Park
The Race starts and ends at the Cabins on Tranquility Lake
The 50 start is at 7:00 AM Saturday, December 6th, 2025
The race will be a single 50.88 loop of the course
50 Mile runners may choose to start Friday with the 100 milers
Due to the extremely difficult and remote nature of the backcountry sections of Blood Rock, we must enforce mandatory cutoffs
Blood Rock 25K and 50K
The Blood Rock 25 & 50K races take place at Oak Mountain State Park
Both races start and end at The Cabins on Tranquility Lake
Both races will start at 7:00 AM Saturday, December 6th, 2025
The 50K course will be one loop of the north end of the 50 mile course plus a short 2.55 mile loop
The 25K will be a partial loop of the north end of the 50 mile loop
The 50K and 25K use sections of the Belcher Tract
PACERS
Blood Rock 100 mile runners are allowed to have pacers after 50 miles
Blood Rock 50 mile runners are allowed to have pacers after dark
Any Runner in the 50 or 100 over 65 may have a pacer any time
25K and 50K runners are not allowed to have pacers or dropbags - Please do not ask