Bloody Run Creek Fishing Guides
A Driftless Area limestone spring creek in northeast Iowa, cold and clear with a strong wild brown trout population.
Guides on the Bloody Run Creek
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About the Bloody Run Creek
Bloody Run Creek runs through the Driftless Area of northeast Iowa, the corner of the state the last glaciation missed, and it is one of the best coldwater streams Iowa has. It rises from limestone springs in Clayton County and runs a short course to the Mississippi near Marquette, dropping through a steep wooded valley of exposed dolomite bluff and hardwood the whole way.
The spring origin is what makes it work. Groundwater emerging from the carbonate bedrock enters at a nearly constant temperature, which holds the creek cold through Iowa summers that would otherwise make trout impossible, and keeps it open and flowing through hard winters. The water is clear, faintly green over the gravel, and alkaline enough to produce heavy insect populations and fast fish growth. This is a limestone spring creek in the proper sense, closer in character to a Pennsylvania limestoner than to anything else in the Midwest.
Brown trout are the main fish and a substantial portion of them are wild, reproducing in the creek rather than arriving in a stocking truck. They grow well on the rich food base and they are demanding: clear shallow water and heavy fishing pressure make them wary. Rainbow trout are stocked and brook trout occur in the coldest upper reaches. Smallmouth bass appear in the lower creek toward the Mississippi confluence.
Fishing it is a technical exercise. Fine tippet, careful wading and an approach from downstream matter more here than fly selection. Much of the creek runs through public easements that Iowa has worked to secure, and habitat improvement has reshaped several reaches. Spring flows respond quickly to rain across the small basin, and a heavy storm can dirty it for a day or two. The creek has been the subject of significant local conservation attention in recent years over watershed protection, a reminder that a spring creek is only as good as the groundwater feeding it. Iowa’s Driftless streams reward anglers who treat them gently.
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Access
Marquette - the gauge reach and access near the Mississippi confluence.
Bloody Run County Park, Clayton County - the main developed access with camping.
Public fishing easements along the valley - walk-in access on the middle creek.
US 18 corridor crossings - road access to the lower creek.
Upper spring reaches - the coldest water and the smallest stream.
McGregor area approaches - the nearest services and staging point.
Effigy Mounds National Monument area - adjoining protected land near the mouth.
Seasons
Spring: strong fishing as insects come off and the creek runs full and cold.
Summer: the springs keep it cold and fishable when Iowa's other streams are too warm.
Fall: excellent, with aggressive brown trout in low clear water demanding a careful approach.
Winter: open through most of the season thanks to the spring flow, with fishing on milder days.
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Questions
What is the current flow on the Bloody Run Creek?
As of Sep 17, 6:00 am, the USGS gauge Bloody Run Creek near Marquette, IA reads 15 cfs. Conditions update every 15 minutes.
What species can you catch on the Bloody Run Creek?
Anglers target Brook Trout, Brown Trout, Rainbow Trout, Smallmouth Bass, White Sucker on the Bloody Run Creek in Iowa.
Where can you access the Bloody Run Creek?
Marquette - the gauge reach and access near the Mississippi confluence. Bloody Run County Park, Clayton County - the main developed access with camping. Public fishing easements along the valley - walk-in access on the middle creek. US 18 corridor crossings - road access to the lower creek. Upper spring reaches - the coldest water and the smallest stream. McGregor area approaches - the nearest services and staging point. Effigy Mounds National Monument area - adjoining protected land near the mouth.
When is the best time to fish the Bloody Run Creek?
Spring: strong fishing as insects come off and the creek runs full and cold. Summer: the springs keep it cold and fishable when Iowa's other streams are too warm. Fall: excellent, with aggressive brown trout in low clear water demanding a careful approach. Winter: open through most of the season thanks to the spring flow, with fishing on milder days.
Where are the fishing regulations for the Bloody Run Creek?
Regulations change by season and section. Read the current rules on the Iowa agency site: https://www.iowadnr.gov/things-do/fishing/regulations-laws