BirdTrout

Tyler Forks, Wisconsin

14.8 mapped river miles, draining 44 square miles, in the Bad Montreal basin watershed. A USGS gauge stands in it, but its record is too short for a measured July mean, so what this page knows about its temperature is today's reading and Wisconsin DNR's classification of the water itself.

Open in BirdTrout
Map key
Public land — where the bank is open to walk and fish
USGS gauge — live water temperature
Water temperature — the colour of the river, and of every dot on it

50°F and colder is cold, through cold-transitional and cool, to warm above 70°F — the same four bands, breaking at 58, 64 and 70°F, that the app paints. Grey is water nobody has measured.

The nearest live reading

This gauge stands in the Tyler Forks. Its record is too short for a July mean, so the class below is Wisconsin DNR's — but the reading is this water.

58.8 °F
Tyler Forks River At Stricker Road Near Mellen, Wi
on this water · 9 cfs · read 30 Sep, 8:30 am CT
Cold-transitional

The character of the water

Tyler Forks is typed almost end to end — 38.0 of 39.33 NHD miles, 97 per cent — and the classification runs Cold ahead of Cool, 26.6 miles against 11.4. On coverage that complete the split describes the water rather than the file, though these pages cannot say which end each class sits at. Wisconsin DNR designates it Class II and Class III, managed as wild supplemented and as stocked. There is no gauge in it; the nearest is on the Presque Isle, 35.2 miles away. The channel is 16.3 feet across at the median, fourth order, draining 44.31 square miles over the 14.8 miles of axis mapped, of which 6.37 run inside the Iron County Forest and 0.38 through Copper Falls State Park. Five short tributaries come in below river mile 10.5.

Thermal classification

Wisconsin DNR's classification of this water, reach by reach. A class, not a temperature — no July mean, because none was measured here.

Reach Typed miles Band Wisconsin DNR type
RM 14.8–14.7 6.6 cool —
RM 14.8–14.5 7.2 cold —
RM 14.7–14.7 4.8 cool —
RM 14.7–0.0 19.4 cold —

Wisconsin DNR has classified 38.0 of the 39 miles NHD carries for this stream — 97% of it. The typed water splits 26.6 mi cold, 11.4 mi cool. The untyped reaches are not warm water — they are water Wisconsin DNR's inventory does not reach, and the mile ranges above span only the reaches it does.

Questions about this river

Wisconsin DNR classification

Wisconsin DNR classifies this water as Class II and Class III. More than one class appears because the classification changes along the river. The thermal bar above shows where. The management tier on those reaches is stocked, wild supplemented. This is a designation of the fishery, not the season and creel rules — those change yearly and live with the agency.

WDNR trout stream classification →

Public land on the river

2 units of public or open-access land touch this river, 181,905 acres in total. Acreage is the whole unit, not the part beside the water.

Unit Owner Acres
Iron County Forest county land 178,368
Copper Falls State Park state natural-resources agency 3,537

Species

Wisconsin DNR designates this as trout water — Class II, Class III — without naming the species. No fish survey or stocking record for this water is in the files this site reads.

Hatches on this water

42 insects are recorded from northern Wisconsin, which is the region this river sits in. That is a claim about the region and not a survey of this stream: nobody has recorded which of them has been caught here. Open the river in the app and the hatch panel will narrow it to the ones whose temperature window today's reading is inside.

InsectPeakWaterSize
Fish Eggs
Other
October–January and April 33–60°F #10–16
Little Brown Stonefly
Taeniopteryx / Strophopteryx spp.
February–April 38–50°F #12–16
Blue-Winged Olive
Baetis spp.
March–May and September–November 38–58°F #16–22
Blackfly
Simulium spp.
April–June 40–65°F #18–22
Cranefly
Tipula spp.
April–June and September–October 40–65°F #6–10
Grannom
Brachycentrus spp.
April–May 48–58°F #14–16
Green Rock Worm / Green Weenie
Rhyacophila spp.
April–June and September–October 45–68°F #10–14
Hendrickson
Ephemerella subvaria
April–May 45–58°F #12–14
Alderfly
Sialis spp.
May–June 52–66°F #10–14
Caterpillar
Lepidoptera larvae
May–September 55–75°F #8–14
Crayfish
Orconectes spp.
May–October 55–78°F #4–8
Giant Black Stonefly (Salmonfly)
Pteronarcys dorsata
May–June 50–62°F #4–6
Green Sedge
Rhyacophila spp.
May–August 48–64°F #12–16
Light Cahill
Maccaffertium ithaca
May–July 55–68°F #12–16

And 28 more — the year-round records, mostly: midges, scuds and sculpins, which are in the water every day and are therefore never the news.

Tributaries and watershed

6 named streams meet this one. Confluence miles are above the mouth; the longest twelve are listed.

Tyler Forks sits in HUC 8 04010302, the Bad Montreal basin, and drains 44 square miles, Strahler order 4 at the mouth. 58 NHD reaches carry the name for 39.3 miles in total — more than the 14.8 miles of drawn mainstem, because NHD counts side channels and braids as their own reaches.

Other water nearby

The closest 6 rivers on this site, straight-line from the middle of this one — not drive time.