Creasy Creek begins in a valley in eastern Dennison Township.

It flows south for a short distance and almost immediately receives an unnamed tributary.

[3] The elevation near the mouth of Creasy Creek is 1,105 feet (337 m) above sea level.

[2] The mouth of the creek is on the United States Geological Survey quadrangle of White Haven.

However, the source is on the United States Geological Survey quadrangle of Wilkes-Barre East.

[3] There are 5.5 miles (8.9 km) of streams in the watershed of the main stem of Creasy Creek.

The watershed of the tributary Reilly Creek contains an additional several miles of streams.

[7] Creasy Creek was entered into the Geographic Names Information System on August 2, 1979.

[8] Wild trout naturally reproduce on Creasy Creek between its headwaters and its mouth.