BirdTrout
Cave Hollow Creek, Wisconsin
3.4 mapped river miles, draining 2 square miles, in the Lower Wisconsin basin watershed. No gauge stands in it; the nearest is 33.5 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 live reading
The nearest gauge is 33.5 miles away, at Black Earth Ck Nr Treatment Plnt @ Cross Plains,wi — not a reading of this water, but of what the region is doing today.
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 3.4–0.0 | 3.4 | cold | — |
Wisconsin DNR has classified 3.4 of the 3.5 miles NHD carries for this stream — 98% 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
- Cave Hollow Creek fishing report — what it reads right now
- When to fish Cave Hollow Creek — hatches, seasons and temperature
- How to get to Cave Hollow Creek — access, parking and public land
- Cave Hollow Creek fishing regulations — season, size and gear by reach
- Is Cave Hollow Creek good for brook trout?
Wisconsin DNR classification
Wisconsin DNR classifies this water as Class II. The management tier on those reaches is 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
1 unit of public or open-access land touches this river, 2,049 acres in total. Acreage is the whole unit, not the part beside the water.
| Unit | Owner | Acres |
|---|---|---|
| Blackhawk Lake Recreational Area | state natural-resources agency | 2,049 |
Species
WDNR has stocked brook trout into this water 9 times between 2016 and 2025. That is a stocking record rather than a survey — it says the fish were put in, not that a survey has found them since.
Hatches on this water
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.
Tributaries and watershed
1 named stream meets this one. Confluence miles are above the mouth; the longest twelve are listed.
Cave Hollow Creek sits in HUC 8 07070005, the Lower Wisconsin basin, and drains 2 square miles, Strahler order 2 at the mouth. 3 NHD reaches carry the name for 3.5 miles in total — more than the 3.4 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.