From Chattanooga driving south on I-75:

Exit I-75 at Exit 336 (Rocky Face, US 41, US 76)

Bear LEFT (East) onto US-76 [SR-52] 14.3 miles

Turn RIGHT (south) onto US-411 [US-76] 2.0 miles

Arrive at Blackfoot Mud Run (course is on the left)

At exit 293 bear right onto US Hwy 411

[SR-61] 38.2 miles

Arrive at Blackfoot Mud Run (course is on the right)