May Evening in Iowa

CinnamonJoe

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MOUNT VERNON
I finally was able to get on the water yesterday.

With drought conditions starting to take hold again in this part of Iowa, my expectations were tempered. Our coldwater streams are heavily limestone influenced, so they generally stay cold and clear, but they will rise and fall to an extent, with the state of the springs and aquifers feeding them.

This is Spring Branch, its about a 50 minute drive from my house. Its near the town of Manchester, IA, just south of US20, 40 min due west of Dubuque, IA. I opted to fish the long, upper meadow stretch, after a quick survey hike showed healthy browns holding in the expected spots, with sporadic rises in the bright, late afternoon sun. This stream can be very technical. Its basically our, 'Spring Creek', but also bears strong resemblance to the 'Letort' in its heyday. Not a soul was fishing it. I opted for a 7'6" 80 year old Montague Fishkill cane rod, running #5 DT on an Ocean City Viscoy reel, pushing an 8' knotted leader of my own design, ending in 2' of 5x fluoro. Did the builders of the rod in Montague City, MA or the reel in Philadelphia, PA back-in-the day ever imagine that their wares would ever make it to the Iowa prairies? (hopelessly romantic nonsense) (heck, I never imagined I would end up here either! LOL)

I could say it was a frustrating evening; but with late afternoon temps topping in the low 80s, zero humidity, a buffet of mayflies hatching, and rising trout, I was motivated. While a little low, the water otherwise looked fine, and the browns seemed to be in their happy place.

I am terrible on my entymology. That needs to be a New Year's resolution next year, at least, and needs to change. At least 3 different types of Mayflies were actively, lightly hatching, ~ lighter colored, a little darker colored, and a little darker yet. They definitely were not Sulphurs, nor BWOs. The 'lighter color' tended to a medium grey, and the 'little darker yet' were golden brownish. They were all a runty size #16. Like, bigger than #18, but barely #16. And, as evening wore on, the trout loved them all. You could see their wings, like micro-sailboats in the film, bobbing along, until a hungry brown would erupt from below to devour it. My best guess? the darker flies seemed like runt Hendricksons. The lighter ones resembled some type of Blue Quill.

So, I started with Blue Quills, moved on to Red Quills (stuck one), then finished up with a Hendrickson comparadun that fooled a few more. There was a long drought after catching the 1st one, while stubbornly clinging to that Red Quill catskill style dry. That fly 'worked' right? But, after 20min of refusals, even this hard-headed Sicilian realized he needed to try something else. Hendrickson fared the best, with one fish drilling it so hard, it went fully airborn on the take.

The evening evolved. It may have been that the darker mayflies were more prevalent later on, and that Hendrickson comparadun simply just did a better job imitating them.

I left at late twilight, with the moon peaking through the clouds; trout still sporadically rising as night fell upon the prairie.

Joe

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(note the risers up stream-one close in by the flat rock on the left, and then farther upstream near the bend)

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(Iowa Driftless prairie butter)

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(goodnite!)
 
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Beautiful brown. I get the entomology struggles. That’s why I carry different sizes of Adams. They seem to work when I can’t figure it out.
After giving up on that 'Red Quill', it was either going to be a flavor of 'Adams' or that 'Hendrickson'. I did not mention that the darker mayflies had long, pronounced forked tails, which the #16 'Hendrickson' patterns I had in the box seemed to match well.

'Adams' for sure, can often 'come to the rescue'.

Joe
 
Nice, Joe.. I fished Spring Branch a half dozen or so times during our 14 years living in the Upper Midwest. It was never my favorite Iowa stream but it was fun to fish. It is obvious that (like many other Iowa streams) brown trout numbers have exploded there since when I was fishing it (primarily 2006-12). I caught mostly stocked RT and had a couple bang up days on #12 egg flies, chartreuse with a red eye. Although Spring Branch has similarities to some portions of the Letort as you mentioned, it reminded me most of a smaller version of Spring Creek in the Paradise back in the days when there was a high level of escapement from the Benner Spring facility.

I'd like to get back out and fish Iowa again, but I think maybe my use by date has come and gone. None of my gears work as well as they did back then..🙂
 
Nice, Joe.. I fished Spring Branch a half dozen or so times during our 14 years living in the Upper Midwest. It was never my favorite Iowa stream but it was fun to fish. It is obvious that (like many other Iowa streams) brown trout numbers have exploded there since when I was fishing it (primarily 2006-12). I caught mostly stocked RT and had a couple bang up days on #12 egg flies, chartreuse with a red eye. Although Spring Branch has similarities to some portions of the Letort as you mentioned, it reminded me most of a smaller version of Spring Creek in the Paradise back in the days when there was a high level of escapement from the Benner Spring facility.

I'd like to get back out and fish Iowa again, but I think maybe my use by date has come and gone. None of my gears work as well as they did back then..🙂
I go hot/cold with 'Spring Branch'. Life had me away from fly fishing, til I decided to 'come back' into the fold over the last few yrs. 23 yrs ago 'Spring Branch' intimidated me. After that 1st year excitement back in 2003, I don't think I fished it again til 2013, when it seemed almost in a state of decline. I did not fish it again until 2025. Its one of the closer 'Driftless' streams to where I live; and the special regs I think help reduce pressure, to some extent. Lately, it seems better. The upper meadow, which is in middle of a cow pasture, was a different stream than I remembered. I saw some cattle guards & fencing that appeared to be intentionally placed to discourage, if not exactly prevent the cows out of the stream. Maybe some of that was helping?

Joe
 
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I think the controlled access for cattle crossing does help with silt and excess fertilizer (ie: cow flops). When I was fishing Wisconsin, I saw quite a few of these arrangements over the years in pasture stretches. It used to be (we moved back to PA in 2014) that one of the ways that WI-DNR sold these changes to farmers was they packaged it with overall stream improvements which were actually as much erosion controls to save pasture from being washed away as they were fish habitat structures. A win-win thing..
 
I think the controlled access for cattle crossing does help with silt and excess fertilizer (ie: cow flops). When I was fishing Wisconsin, I saw quite a few of these arrangements over the years in pasture stretches. It used to be (we moved back to PA in 2014) that one of the ways that WI-DNR sold these changes to farmers was they packaged it with overall stream improvements which were actually as much erosion controls to save pasture from being washed away as they were fish habitat structures. A win-win thing..
Makes sense. Getting everyone on the same page is usually 99.99% of it.

Joe
 
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