9.3 mapped river miles, draining 20 square miles, in the Coon Yellow basin watershed. No gauge stands in it; the nearest is 33.0 miles away, and what this page knows about its temperature is Wisconsin DNR's classification of the water itself.
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 gauge is 33.0 miles away, at Silver Creek At State Highway 21 Near Angelo, Wi — not a reading of this water, but of what the region is doing today.
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 9.3–8.8 | 0.5 | cold | — |
| RM 9.3–8.1 | 2.2 | cool | — |
| RM 8.8–8.0 | 0.9 | cold | — |
| RM 8.1–7.4 | 1.2 | cool | — |
| RM 8.0–6.7 | 1.3 | cold | — |
| RM 7.4–6.3 | 2.4 | cool | — |
| RM 6.7–6.3 | 0.4 | cold | — |
| RM 6.3–6.3 | 0.4 | cool | — |
| RM 6.3–0.0 | 6.8 | cold | — |
Wisconsin DNR has classified 16.1 of the 16.0 miles NHD carries for this stream — 101% of it. The typed water splits 9.9 mi cold, 6.2 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.
Wisconsin DNR classifies this water as Class I 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. 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 →
1 unit of public or open-access land touches this river, 1,362 acres in total. Acreage is the whole unit, not the part beside the water.
| Unit | Owner | Acres |
|---|---|---|
| La Crosse Area Comprehensive Fishery Area | state natural-resources agency | 1,362 |
Wisconsin DNR designates this as trout water — Class I, Class III — without naming the species. No fish survey or stocking record for this water is in the files this site reads.
51 insects are recorded from the Wisconsin driftless, 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.
| Insect | Peak | Water | Size |
|---|---|---|---|
| Fish Eggs Other |
October–January and April | 33–60°F | #10–16 |
| Little Black Stonefly Allocapnia / Capnia spp. |
January–April | 34–46°F | #16–18 |
| 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 |
| Blue Quill Paraleptophlebia adoptiva |
April–May | 44–56°F | #16–18 |
| Cranefly Tipula spp. |
April–June and September–October | 40–65°F | #6–10 |
| Grannom Brachycentrus spp. |
April–May | 48–58°F | #14–16 |
| Hendrickson Ephemerella subvaria |
April–May | 45–58°F | #12–14 |
| Little Black Caddis Chimarra atterima |
April–May | 46–58°F | #16–20 |
| Caterpillar Lepidoptera larvae |
May–September | 55–75°F | #8–14 |
| Crayfish Orconectes spp. |
May–October | 55–78°F | #4–8 |
| Inchworm Geometridae |
May–June | 50–68°F | #12–16 |
| Light Cahill Maccaffertium ithaca |
May–July | 55–68°F | #12–16 |
And 37 more — the year-round records, mostly: midges, scuds and sculpins, which are in the water every day and are therefore never the news.
1 named stream meets this one. Confluence miles are above the mouth; the longest twelve are listed.
Hornby Creek sits in HUC 8 07060001, the Coon Yellow basin, and drains 20 square miles, Strahler order 4 at the mouth. 36 NHD reaches carry the name for 16.0 miles in total — more than the 9.3 miles of drawn mainstem, because NHD counts side channels and braids as their own reaches.
The closest 6 rivers on this site, straight-line from the middle of this one — not drive time.