Mountain Fork Half Marathon

The Mountain Fork Half Marathon is a 13.6-mile race that starts and finishes at the High Knob Observation Tower in Wise County.


The race loops through the scenic Mountain Fork watershed, primarily on Forest Service roads, before finishing back at the High Knob Observation Tower.

The High Knob Observation Tower stands atop the highest point in the Cumberland Mountains and is located on the Jefferson National Forest's Clinch Ranger District. High Knob's elevation rests at 4,230 feet. Five states can be seen from the tower's platform, including a 360-degree view of peaks as far away as the Great Smoky Mountains National Park and West Virginia.

​The inaugural Mountain Fork Half Marathon will be held Sunday, September 20. The race was postponed from its original June date due to the COVID-19 outbreak.


Online Registration


​Mail-In Registration


​All race proceeds benefit ongoing trail development and maintenance on the Flag Rock Area Trails system in the City of Norton's Flag Rock Recreation Area and on High Knob.


See for race updates. 

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