BirdTrout

Eighteenmile Creek, Wisconsin

15.9 mapped river miles, draining 29 square miles, in the Bad Montreal basin watershed. No gauge stands in it; the nearest is 14.0 miles away, and what this page knows about its temperature is 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

The nearest gauge is 14.0 miles away, at Namekagon River At Leonards, Wi — not a reading of this water, but of what the region is doing today.

56.3 °F
Namekagon River At Leonards, Wi
14.0 mi away · 43 cfs · read 30 Sep, 8 am CT
Cold

The pills above go to USGS. These are this site's pages for the same gauges — a thirty-day chart, the monthly means, the record, and today's reading against the five-year normal for today: 05331833.

The character of the water

Eighteenmile Creek is Class I water under Wisconsin DNR, managed as wild, with 14.9 of its 16.83 NHD miles typed Cold — 89 per cent, and no reach classed anything else. There is no gauge in it; the nearest is on the Namekagon, fourteen miles away. It is 11.6 feet across at the median, third order, draining 29.33 square miles over the 15.9 miles of axis mapped. Public frontage is the strong point: 8.71 miles inside the Chequamegon National Forest, 1.77 through the Bibon Swamp State Natural Area and about three-quarters of a mile more through two statewide habitat parcels — roughly eleven of the sixteen mapped miles with public ground on one side or other. Porcupine Creek, the only named tributary, enters at river mile 10.3.

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 14.1–0.0 14.9 cold —

Wisconsin DNR has classified 14.9 of the 16.8 miles NHD carries for this stream — 89% of it. Every typed reach carries the same class, cold. 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 I. The management tier on those reaches is wild. 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

4 units of public or open-access land touch this river, 960,776 acres in total. Acreage is the whole unit, not the part beside the water.

Unit Owner Acres
Chequamegon National Forest U.S. Forest Service 948,495
Bibon Swamp State Natural Area state natural-resources agency 9,614
Statewide Habitat Areas state natural-resources agency 1,866
Statewide Habitat Areas - Nw state natural-resources agency 800

Species

Wisconsin DNR designates this as trout water — Class I — 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

1 named stream meets this one. Confluence miles are above the mouth; the longest twelve are listed.

Eighteenmile Creek sits in HUC 8 04010302, the Bad Montreal basin, and drains 29 square miles, Strahler order 3 at the mouth. 17 NHD reaches carry the name for 16.8 miles in total — more than the 15.9 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.