It's crazy...but other than that, it's kind of fun.

Gulf Coast Ultras

Cottonmouth 100


Registration is now open for the 2nd Annual Cottonmouth 100!

(Click HERE to sign up now at

If you prefer, you may mail in your entry using the following form: Cottonmouth 100 Registration Form

Race Information:

Announcing the 2nd Annual "Cottonmouth 100" Ultramarathon with distances of both 100 Miles and 100K. Hosted at Blackwater River State Forest Bear Lake Recreation Area on November 11-12, 2017, in Milton, Florida. Presented by Gulf Coast Ultras.


Blackwater River State Forest
Bear Lake Recreation Area
Bear Lake Road
Milton, FL 32570
Coordinates: 30°51'39.6"N 86°50'04.3"W

Course Description:

The Cottonmouth 100 takes place on several "Florida Trail" hiking trails: the Juniper Creek Trail, the Jackson Red Ground Trail, the Hutton Trail, and the Wiregrass Trail with connector trails to Bear Lake and Karick Lake. These scenic trails take you along the gently rolling hills of the Blackwater River State Forest in Northwest Florida. Mostly surrounded in longleaf pines and wiregrass, the Jackson Red Ground Trail is a historic route used by General Andrew Jackson and his 1,200 troops in 1818 as they marched towards Pensacola and was one of the earliest trade routes of Native Americans and settlers in Florida. While on the Juniper Creek Trail, you remain within sight of the Blackwater River and creek for quite a distance with spectacular views from the bluffs at Red Rocks. Keep your eyes open because you'll surely run into some cool wildlife along the way.

This is an out and back course with low elevation change. Runners will traverse mostly single track trails with roots and covered creek crossings rating it a low to medium on the technical scale.

Don't want to run the full 100 Miles or 100K? Try out our Deer Dodge 50 one month later in December.

Race Capacity:

The race capacity is a total of 150 runners.
Be sure to register early before the race sells out.

Race Fees:

100 Mile
$160 until July 30, 2017
$190 July 31 - October 8, 2017

$130 until July 30, 2017
$160 July 31 - October 8, 2017

Registration closes October 8, 2017.

Packet Pick Up/Drop Bag Drop Off:

Friday, November 10 from 3:00pm - 7:00pm CST at Bear Lake Recreation Area Pavilion.
Drop Bags will only be accepted here during these times.

Saturday, November 11 from 4:30am - 5:30am CST at Bear Lake Recreation Area Pavilion.

Start Time and Time Limit:

Start time is Saturday, November 11 at 6:00 AM CST. Cut-off time to complete the full 100 miles is 30 hours. Cut-off time to complete the 100K is 20 hours. Aid station cut-off times/closings will be provided to match this and will be strictly enforced. This ensures aid station availability and the safety/accountability of all runners.

Aid Stations:

There will be multiple aid stations along the course ranging from 3-8 miles apart. Each aid station will be supplied with water, electrolyte drinks, snacks (and other warm goodies as the night rolls on), basic first aid, and enthusiastic volunteers. All runners MUST carry some form of hydration! It can be a simple 12 ounce bottle of water or a 100 ounce backpack, but it is MANDATORY that all runners carry hydration.

Swag and Awards:

All runners who register by October 8, 2017 will receive some great custom SWAG. All 100 mile finishers finishing within the cut-off time will receive a one of a kind belt buckle like no other you've ever seen. All 100K finishers finishing within the cut-off time will receive a unique commemorative medal. Awards will also be given for 1st place overall male and female finishers in each event.

Post Race:

Hang out and bask in your glory while enjoying some great food and drinks after you finish. Don't forget to cheer on the other racers as they come through the finish line!

Refund Policy:

We understand that plans change or things happen, but no refunds, transfers, deferrals, or rollovers of any kind are permitted for this race. The same policy applies if for any reason out of race management's control (i.e., natural disaster, park closure, etc.) the race has to be canceled.