[1] Bellas Brook joins Mehoopany Creek 18.40 miles (29.61 km) upstream of its mouth.

[2] The stream is entirely within the United States Geological Survey quadrangle of Dutch Mountain.

In 1995, two small sub-populations of a plant that is rare in Pennsylvania were found in the swamp under red spruce trees.

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

[8] Bellas Brook Swamp is located within Pennsylvania State Game Lands Number 57.