NEAR BRULE, WIS. —Dave Zentner and I slumped in his truck as lightning gamboled across a shadowy sky. This was about 8 o'clock on Monday evening and already we should have slid the canoe into the blackened river and put our shoulders to an hour of paddling. Then we would have reached the heart of the matter, trout rising and mosquitoes swarming on a mirror-finished river. Having made the trip before, we could imagine this and imagine also startling deer on a riverbank or mallards from their roosts as we rounded our way upriver. But the storm held us up. Rain was falling. We were in the truck.
"Let's wait and see what the weather does,'' Dave said.
The mayfly we would fish hatches in waves seasonally, beginning in mid- to late June in northern Wisconsin lakes and rivers. Summer progresses and these explosions of hexagenia limbata march up the latitudes, including along Minnesota's North Shore, before appearing farther north still, in Ontario. After mating, "hex'' spinners fall back onto the rivers, which attract trout, oftentimes big trout, which slurp them. The trick for the nighttime angler is to hear the rise, imagine the location and cast flies to it, mimicking the real thing.
More immediately the trick for Dave and me was to find a hole big enough in the gathering tempest to launch our canoe into the river. We would need three to four hours round-trip, typically arriving back at our truck after midnight.
"You remember a couple of years back on that Fourth of July night we fished,'' I said. "Lightning was everywhere. But it was farther away than this.''
"The bugs never came off the river that night,'' Dave said. "And it rained some.''
"The rain I don't mind.''
"The rain is all right.''