ATTENTION: All you ‘long roders’, if you have not already dusted off your fly fishing equipment from Utah’s long cold winter you better do so. Just around the corner is one of the most prolific insect hatch cycles that those who fish Utah’s Provo River will experience. The little beauty I am speaking of is the Western United States BWO, (for those of you that do not know what the acronym BWO stands for, grab your notebook and pencil-I have to erase more than I like to admit!). Well it stands for Blue Wing Olive, yes that is correct. Now if you have a higher education than I do, you know this Mayfly by the Latin name Baetis (Baetidae family). Fortunately, I have not yet met a Trout that understands Latin.
The coming of spring rises our river and streams water temperature, which in return, wakes up these sleeping trout delicacies. Imagine for just a moment that you are a 20 inch Brown Trout laying on the bottom of Utah’s Provo River, or any other great Fly Fishing Utah river. It has been a long cold winter with water temperatures maintaining around 36 degrees. All you have been able to snack on are those darn tiny midge. Within the last couple of weeks, the air temperature has began to warm, as well as the temperature in your big swimming pool. As the hog of the hole, you are feeling pretty good, spring fever is hard to beat. The previous night was overcast, the cloud cover has retained the warmest temperature of the passing day, the light level is low, the water temp is just right, and bam! At around 11am, swimming from the bottom of your home comes one, and then another, and in the blink of an eye multitude’s of emerging BWO’s are everywhere. Considering you are the big fish in the pond, it is time to start the daily activity of gorging on the emerging nymph. Taking in consideration just like any other living creature, it is time to relocate my position. Moving closer to the bank, just behind that perfect rock where the current seam acts just like the most efficient waiter that keeps it coming. In the following hour or two, and for that matter, four hours during the strongest hatch, Mr. Brown eats with a rhythm similar to the perfect song.
Ok, enough of swimming with the fish! It’s me, Mr. Fly Fisherman. I started my day around 7am. Hey its my day off, I am still up early enough to head to my favorite Fly Shop in Heber City, Four Seasons Fly Fishers. Upon entering I am greeted with a smile and the same comment I here every time I arrive, “How are you doing? Are you headed out?” Well let me help you with what you are going to need to break the rhythm of Mr. 20 inch Brownie that should be sitting behind the perfect rock- just above Hoovers Hole on the lower Provo River.
After the staff at the shop sets me up for a day of success I say my goodbye’s and depart. I think for a moment, “I kind of feel bad for the person that just helped me”, (thinking they probably are wishing it was their turn to match the hatch). Instead, sending another angler to experience a days adventure matching the BWO hatch on the mighty Provo. One very important piece of information I received during my visit was that the hatch will begin around 11am. I think one more cup of coffee from the Local Grind Coffee shop, which sits across from Four Seasons, will complement a great start to the day. (Have you ever noticed how there seems to be a coffee shop next to every great flyshop?)
Arriving at the river, I am experiencing the pre-fish excitement jitters. I love how this sport removes me from reality. All dressed now, away I go, I have one of my favorite tunes in my head, all is good. I have chosen the perfect day for a BWO emergence. It is cloudy and warm, and possibly, a threatening rain shower. Not to fear, I am wearing my new Patagonia rain jacket I did not know I owned until I left Four Seasons. Man those guys are good! Let it rain. I asked during the visit at the shop if the rain would be a problem? No I was informed, the fish are already wet!
It is time, I am on the bank of the river as suggested by the guys at the shop. I take notice if their are any BWO’s flying around. I see none. Ok, let’s set up the deep rig. Starting with 9 ft leader, a strike indicator set deep tapering down to 5x tippet and a really cool looking set of nymphs the guys at the shop set me up with. I commence to fishing. Life is good. Sure enough, with the coaching I received from my visit to the shop, along with the patterns I purchased, I begin my quest for nirvana. Catching half a dozen fish in the first hour is great. Then out of the corner of my eye I see one, then another, and yes, a multitude of BWO adults flying by. I begin searching the river banks for the perfect rock, with the perfect seam breaking off. Suddenly I spot Mr. 20inch Brownie dining with a easy to read rhythm on the emerging nymphs. Every now and then he will stick that big nose of his out of the water and grab a mature adult dun. I frantically start the process of changing my rig to a shallow water set up. I enjoy this type of approach as much as dry fly fishing. All set up, I place myself in a position. I believe I can make the shot, first cast too far to the left. That’s Ok, better than landing on the perfect rock. Third cast, I lead my target by about four feet. I have a great drift. My fly has to be in the strike zone, wait…wait, he moves on my fly, I lift the rod, and what happens? Well with the biggest fish, this big guy doesn’t know he’s hooked immediately. That lasts for another second, off he goes ripping line as if the BWO he just ate had a stinger. Up stream he goes tearing up all the water in his path, then he stops, turns, and comes back as fast as he left. Down river he goes. As I have been taught, I begin my stumbling chase…who’s got who? Finally, I net him in my brand new Brobin Ghost Net I did not know I owned until my fly-shop visit! After admiring this perfection of a trout, I release him back into his world. I have achieved nirvana.
During the remainder of my BWO day of fishing, I have caught fish from every possible approach. Starting on the bottom, moving to shallow water, site nymphing, and finally the icing on the cake… two hours of dry-fly fishing.
Ok. I will stop with the stories. I am hoping that my reflections of a day of BWO fishing on Utah’s Provo River will help and excite my fellow anglers to experience this incredible annual happening. The BWO’s generally will begin mid March, and lasting some years until the end of May. If you would like to learn more about the Blue Wing Olives, along with other important Western Mayfly’s, I recommend the book ‘Western Mayfly Hatches From The Rockies To The Pacific’, written by Rick Hafele and Dave Huges. The volume leaves no stone unturned. A true American Fly Fishing classic.
Written by: Mark Forslund