Big Coldwater Creek

Big Coldwater Creek is a tributary of the Blackwater River in Santa Rosa County, Florida. It rises in several small streams in the northern part of the county near the border with Alabama, and flows southward to merge into the Blackwater River near the city of Milton, Florida.
Baseflow makes up about 60% of the flow in Big Coldwater Creek, while 40% is surface runoff. The basin has a rolling topography and a relatively steep slope, and flood waters drain quickly. Heaviest stream flow corresponds to seasonal variations in rainfall, with high average flows in March and April, high peak flows in July and August due to heavy rainstorms, and lowest average flows in October, during the dry season. Groundwater remains high enough to maintain stream flow year-round except in the smallest streams.
While some tributaries of the West Fork drain agricultural lands, most of the course of the stream runs through the Blackwater River State Forest. The stream is generally shallow, flowing over a sand bottom. Naval Air Station Whiting Field is west of the lower reach of Big Coldwater Creek, near Milton. The Coldwater Creek Canoe Trail
extends for along the stream.