Martin's Fork (Cumberland River tributary)

Martins Fork
Martin's Fork Lake
Physical characteristics
Mouth 
  location
Harlan, Kentucky
  coordinates
36°50′42″N 83°19′27″W / 36.84500°N 83.32417°W / 36.84500; -83.32417
  elevation
1,158 ft (353 m)
Length32 mi (51 km)
Discharge 
  locationHarlan, Kentucky
  average243 cu/ft. per sec.
Basin features
ProgressionCumberlandOhioMississippi

Martins Fork is a 32-mile (51 km) river in Bell and Harlan Counties in Kentucky in the United States. The river flows east and north from its source in the Cumberland Mountains, a subrange of the Appalachian Mountains, to its confluence with the Poor Fork at Baxter. The confluence marks the official beginning of the Cumberland River.