Super-Prime Lies and Big Trout | The Spots within the Spots

September 12, 2017


We talk a lot about big wild brown trout. The search for these extraordinary fish is what keeps us going. It’s part of the Troutbitten culture, and the inch marks of Whiskey (20+) and Namer (24+) are ingrained here. To some of us, big fish are everything, but to all of us they are at least something — something very special for sure.

Targeting what I call super-prime lies is one way to catch big trout consistently.

I recently wrote about locating and fishing rivers where big trout live. But that’s not nearly enough. To catch the big trout in those rivers, you have to know their specific address and go right through the front door.

In every river there are places that harbor larger fish. But the real secrets are inside those areas. This is where the true talent and skill of a big-fish angler emerges.

Catching big trophy trout doesn’t require anything more than a good drift or a strip with the right fly. Average or slightly above average skill is needed for the presentation, and it’s really not that hard. But the unusual skill, the unique challenge, is to fish long enough, to fish hard enough and be thoughtful enough to find the spots within the spots. And that … is not easy.


It’s natural to assume that big fish could be anywhere in the river. I’ve seen the idea in print and heard it in conversation too many times. While there’s a kernel of truth to the concept, the idea is misleading. Big trout could be anywhere, but usually they are not.

It’s also natural to figure that big fish reside near structure. And they do. So by fishing, reading or through more conversation, we learn the concept of prime lies: areas that provide both excellent cover and feeding opportunities generally have the largest trout residents on the premises.

But there’s a level beyond that. The spots within the spots are super-prime lies. These are places that hold big trout (almost) all the time. They are as reliable as anything in fishing ever gets. Not a guarantee, but there’s a very good chance a Whiskey will see your fly. And that’s the start of something special.

The biggest trout you’re after could be anywhere in the river, but he’s probably not. He’s more likely holding in a super-prime lie for most of the day, and even through the night. You could fish everywhere (fish all the water), but if you’re targeting big trout, then try finding smaller targets. Choose more narrowly defined pieces of river to focus on.

Good browns don’t always move to the tailouts or the shallows at night. Oftentimes, they are in the same prime-lies where they hold during the day.


Instead of thinking about targeting a one-hundred yard section of water, think about finding the 5 foot bucket or the 10 foot trench within those one-hundred yards. And instead of fishing the prime lie beside a pile of submerged spruce trunks, find the best corner of the swirling current among those sticky branches.

Zoom in. Get specific. Because, within every good spot, there’s a best spot. And when you find it, you can really dial things in. The best fish will be there day after day.


Finding super-prime lies takes time, and it’s folly to try and accelerate that process. Exploration is an earned prerequisite and a reward in itself, so trying to bypass experience is missing the mark. It’s also bad fishing Karma. In the end, the river has a way of dealing with pretenders.

So, go fish these places often, and fish them hard. Which places?

Mentally catalog the locations that give up fish, especially bigger ones. Try to dial in one seam within a great spot. Present identical casts to the same prime lie until you understand it. The flies at the end of your line are your probe, your tool for discovery, and an extension of your own curiosity. Cast to the same spot and learn. Eventually, you’ll find the super-prime lie if there is one.

Fish dry flies to understand the surface currents, but especially fish nymphs and streamers to learn about the bottom, because that’s where the big trout are holding. Learn the area well enough to understand where the rocks and snags are.

To find the super-prime lie within a good spot just keep fishing it, and then believe what the fish tell you.

Also, low water is an excellent time to learn more about your favorite big fish spot. By wading through, you’ll discover the small buckets, skinny ledges and minor drop offs. These are the places where big trout hold.

Often, these spots are invisible, even in low water, but you’ll find super-prime lies by fishing thoughtfully and repeatedly wherever you’ve caught larger trout. Those places should peak your interest, then you go back to learn the secrets.

Photo by Pat Burke


Many of these small areas hold multiple large fish. I know spots where 18-inch fish hang out with Whiskeys in the same tight spot. Standard fly fisher’s wisdom tells us that only one Meathead dominates the area. Big trout are supposed to want a space all for themselves, but that’s not always true. And sometimes, multiple big trout just want their noses in the same sweet spot of water.

Super-prime spots are rare, but they are worth the time to find, because they always hold good fish. Sometimes the same big brown trout hangs out in one pocket for years, and if you’re lucky you’ll catch him a few times and watch him grow. Just as often, you’ll find different fish too.


In my waters, there’s rarely more than one super-prime spot in a one-hundred yard stretch, and I think they are much rarer than that. On one of my favorite rivers, I can think of only about ten sweet spots in an eight-mile stretch.

That’s not to say there aren’t more. I just haven’t found them yet. But I’ll keep searching, because big trout are always there. And tracking these down is a welcome challenge to a big-fish-fisherman.

Photo by Pat Burke


There’s a two-hundred yard stretch of alternating pocket water and riffles that rolls along, bordered by deep, wide pools on either end.

There are many good zones within that hundred yards. Within those zones are some prime lies that most experienced fishermen certainly focus on.

I fished the area for three years, then one day I caught two upper-teens fish and a Whiskeys from the same spot. Naturally, I started focusing on that small area every time I went back. I did well there at times, but I knew I was missing something.

Last year, I saw all of it during the low water of a drought. I wasn’t even fishing, just exploring to see what I could learn about this section of river, and its secrets were revealed, open and exposed by the low water. I waded through the sweet spot and found a trench about 10 feet long, 2 feet wide, and maybe a foot deep. Bingo! That trench makes up the super-prime lie. And now, if I can get the right fly with the right drift down into the ditch, I often catch a very large trout.


The best spots sometimes go dead. My all-time favorite sweet spot just doesn’t produce anymore. The super-prime lie was a small bucket in the riverbed, and it’s still there, but the big fish are gone. Somehow, in some way, the currents changed. Or some unseen condition that I cannot sense changed as the years past, because rivers grow and live and develop. And thank God for that.

Fish hard, friends.

Enjoy the day.
Domenick Swentosky

Photo by Pat Burke

Photo by Austin Dando


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Good job terrific advise; for most it takes a lifetime to learn these facts….if we ever do

Alex Argyros

Great essay, especially the last section. Heraclitus would have approved.

Alex Argyros

And, maybe this is right place to say it: this is without a doubt the best fly fishing blog on the web. You’re doing fantastic work, Dom.

Such a great post. So true that miles of water can have only a few prime spots. There were several rivers that came to mind when you mentioned that. I thought of one spot in general I’ve fished for years. I can never get a cast I feel is proper and by the time I do I think the big fish has already seen my game and either ignored my fly or figured something is not right and now is more eager to stay hunkered down. I find my best chances to find the good spot be prepared and ready… Read more »

OK I’ll show my ignorance: what is a Whiskey? 20+ but why is it called Whiskey?

John Bonasera

I just found this place and have to say….you not only write like Hemingway, but your content is awesome! Well done my friend

Vincent trzeciak

Hello. Most of the prime spots on my fav river were gone after hurricane irene. After, there were new holes and pockets all over that river for the trout to play in. It was sad to see some of my most productive holes gone. Keep posting and I will keep reading.

Curtis Reeves

Catching that “fish of a lifetime” is part luck and part skill IMHO. I’ve been fly fishing for nearly 2 decades and have yet to land him! However, what I have learned through the years is reflected in this post. Before making a first cast on a new water or unfamiliar stretch, I search for, what I call, the sweet spot…..the most likely holding area for trout. Having spent a lot of time studying trout behaviors, I feel I have become quite adept in reading water and my results bear this out. A few weeks ago, I was fishing a… Read more »

Domenick Swentosky

Hi. I'm a father of two young boys, a husband, author, fly fishing guide and a musician. I fish for wild brown trout in the cool limestone waters of Central Pennsylvania year round. This is my home, and I love it. Friends. Family. And the river.

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