The Black River in the western UP is not a river you fish because it’s convenient. You fish it because the trout there have not forgotten what wild water feels like, and because in late April, when the season finally turns, the hatches come with the kind of certainty that makes you believe again in the old rhythms. Today the water is cold but moving toward something. The gauge data is unavailable, which means you’ll need to trust your eyes and the feel of the current against your legs, the way anglers used to do before we had numbers to hide behind.
Water conditions and what to expect today
We don’t have flow or temperature readings for the Black today, so here’s what matters: it’s mid-April, the water has been warming for three weeks, and the freestone character of this river means it responds quickly to air temperature and overnight cold. If it was below 40 degrees last night, expect slower rises and fish deeper. If the day is overcast and mild, expect midges and Blue-Winged Olives in the slower water. The Hendricksons are close now, probably another week or two out depending on sustained warmth, but you can start fishing the nymphs in the riffles today with confidence. This is the window.
The best move is to drive up, check the river in person, and fish accordingly. The Black near Bessemer rewards this kind of attention. It’s not a river that forgives remoteness with easy fishing.
Hatches and patterns for right now
Midges are constant in April, especially in the slower pools and eddies where the Black slows enough to hold them. Dead drift a Mercury Midge or Zebra Midge, size 20, under a small indicator tight to the bottom. Use 5X tippet and watch for the kind of subtle takes that define midge fishing. A Griffith’s Gnat in the same size works when you see actual surface activity, though in April that’s more hope than expectation.
The Little Black Stonefly is present and emerging now. Fish a size 14 nymph, either a Little Black or a general Black Stonefly Nymph, dead drifted tight to the bottom through the riffles. If you see adults, and you will, crawl them along the banks with a dry in the same size 14. These are not selective rises. Fish them.
Blue-Winged Olives will show on overcast afternoons. The Black’s rocky character and pocket water create good habitat for Baetis. Fish a Parachute BWO or Sparkle Dun in size 16, or if the hatch is heavy and fish are keyed on emergers, drop an RS2 in size 18 just subsurface. Use 5X or 6X fluorocarbon tippet. The light matters here. Wait for cloud cover or late afternoon.
The Early Brown Stonefly is emerging now as well. Swing a Hare’s Ear Nymph, size 12, through the riffles on a dead drift or slight swing. If you see adults skittering on the surface, try a brown Elk Hair Caddis in size 14, skated slightly. These fish will come to it.
Grannom Caddis hatches are building. Fish an Elk Hair Caddis, size 14, skittered across the surface in the morning if the hatch is on. If fish are keyed on pupae during the emergence, swing a LaFontaine Sparkle Pupa through the riffles. If nothing is working but you see risers, try an X-Caddis in size 14 fished in the film. Caddis fishing on the Black is often about matching the behavior more than matching the exact shade of brown.
Access and what you need to know
The Black River Harbor Recreation Area provides formal access. Beyond that, multiple county road access points exist throughout the system near Bessemer. The river flows through the Porcupine Mountains area and the scenery is genuine wild country, not postcard scenery. Waterfalls mark the river in places. This is remote water and the remoteness is part of what keeps it good. Plan accordingly. Tell someone where you’re going. Check current DNR regulations for any special UP designations before you go.
The Black holds both brook and brown trout. The brookies tend to be wild and small, the browns larger and more selective. April is too early in the season for these fish to be particularly large, but they’re honest trout in honest water.
For current flow and temperature data, check https://trout.chrisizworski.com.