Water quality in the park has been well-documented within the last 15 years, with most study performed on the three major streams and their drainages. These include Mint Spring Bayou, which varies from a perennial flow in its lower portions, to an intermittent stream in its upper reaches, and has two waterfalls caused by rock outcrops. The second major drainage is Glass Bayou, a shallow, perennial stream throughout most of its reaches, which flows for a short length through an exposed cave passage. Both of these major streams are tributaries of the Mississippi River. A third stream, Durden Creek, is an ephemeral waterway.
Mint Spring Bayou,|Glass Bayou,|Mississippi River.|Durden Creek, Mississippi River.
Mint Spring Bayou,|Glass Bayou,|Mississippi River.|Durden Creek, Mississippi River.