Dunderdale Creek is a 2.75 mi (4.43 km) long 1st order tributary to Caldwell Creek in Warren County, Pennsylvania.

It is the only stream in the United States with this name.

[1] Dunderdale Creek rises about 0.5 mi (0.80 km) east of Starr, Pennsylvania, and then flows west-southwest to join Caldwell Creek at Grand Valley, Pennsylvania.

[3] Dunderdale Creek drains 2.52 sq mi (6.5 km2) of area, receives about 44.4 in (113 cm) per year of precipitation, has a wetness index of 419.71, and is approximately 81% forested.

[5]