Lincoln Spring Creek is a large, low-gradient, 1st order spring creek that originates from the alluvial aquifer underlying the Lincoln Valley. The stream is 5.3 miles in length and flows west entirely through private land. Lincoln Spring Creek enters the town of Lincoln at mile 3.4. At mile 2.9, the spring creek splits into two separate channels. The south channel continues to flow through residential neighborhoods and exits the town at mile 2.1. The north channel flows through willow-dominated wetlands. The two channels rejoin at mile 1.0 before entering Keep Cool Creek at mile 0.5. Spring creek flows tend to seasonally rise and fall with the underlying aquifer and the influence of an irrigation diversion off the Blackfoot River. The upper portion of the spring creek is intermittent upstream of mile 4.5 from fall into early spring; whereas, the lower portion of the spring creek continuously gains water and maintains perennial flow downstream of mile 4.5.