West Branch Little Muncy Creek begins on Huckleberry Mountain in Davidson Township, Sullivan County.
It flows southwest for several tenths of a mile, entering Franklin Township, Lycoming County and crossing Pennsylvania Route 42 before turning south-southeast.
After a few tenths of a mile, it turns south-southeast, entering Jordan Township and receiving its only named tributary, West Creek from the left.
However, a large area of Wisconsinan and Reworked Illinoian Till occurs in the surficial geology further upstream, and there are a few patches of it near the creek's lower reaches as well.
[3] A proposed natural gas pipeline would cross West Branch Little Muncy Creek and numerous other streams in the area.
[3] West Branch Little Muncy Creek is being considered for wild trout designation by the Pennsylvania Fish and Boat Commission.
The stream was surveyed on July 2, 2013 and listed on the Pennsylvania Fish and Boat Commission website as being considered for wild trout designation on January 20, 2015.