Muskellunge Stocked · 24 plants · last 2024 Best: dawn, dusk Castle Rock Lake fishing
Castle Rock Lake fishing is stocked with Muskellunge and Yellow Perch on a reservoir. Also recorded: Smallmouth Bass, Largemouth Bass, and Northern Pike. It is stocked about 2 times a year since 2010. Species guides list dawn and dusk for Muskellunge, Smallmouth Bass, and Largemouth Bass and dawn, day, and dusk for Yellow Perch and Northern Pike.
- Last stocked
- 2025
- Yellow Perch
- Plants on record
- 32
- Since 2010
- Species stocked
- 2 (+3 also recorded)
- Average size
- 9.3 in
- Surface acres
- 13,027.6
Fish at Castle Rock Lake
Muskellunge Stocked · 24 plants · last 2024 Best: dawn, dusk 
Yellow Perch Stocked · 8 plants · last 2025 Best: dawn, day, dusk 
Smallmouth Bass Confirmed present Best: dawn, dusk Best: dawn, dusk
Smallmouth Bass species guide
Largemouth Bass Confirmed present Best: dawn, dusk Best: dawn, dusk
Largemouth Bass species guide
Northern Pike Confirmed present Best: dawn, day, dusk Best: dawn, day, dusk
Northern Pike species guideHow Castle Rock Lake is stocked
No plants recorded in 2020.
Fish stocked in 2010
1,604
Fish stocked in 2011
5,096
Fish stocked in 2012
12,310
Fish stocked in 2013
7,957
Fish stocked in 2014
2,700
Fish stocked in 2015
2,700
Fish stocked in 2016
3,950
Fish stocked in 2017
1,550
Fish stocked in 2018
1,600
Fish stocked in 2019
1,000
Fish stocked in 2021
2,970
Fish stocked in 2022
1,624
Fish stocked in 2023
3,122
Fish stocked in 2024
2,200
Fish stocked in 2025
1,000
Stocking history
Access and facts
- Water type
- reservoir
- Nearest town
- Town of Germantown (Juneau County), WI
- Facilities
- restrooms, dock, cleaning station
At least ten public ramps and a carry-in across Adams and Juneau counties; several need a state park vehicle sticker or a daily fee, and ADA access and restrooms vary by landing. From shore, use Buckhorn State Park's 90-foot accessible pier, the Buckhorn bridge or the canoe launch.
Drafted by AI from the cited sources and checked before publishing.
Advisories, closures, regulations and water conditions change. Check the Wisconsin Department of Natural Resources before you go.
About Castle Rock Lake
Nearest lakes
Public land at Castle Rock Lake
Castle Rock Lake is 0.4 miles outside the edge of Buckhorn State Park.
Boundaries from Public Lands DB, part of the same network.
Common questions
What fish are at Castle Rock Lake?
Fishing Castle Rock Lake usually means Muskellunge: Muskellunge accounts for 24 of 32 plants on record, ahead of Yellow Perch. Muskellunge was last stocked 2024, averaging 11 in. Yellow Perch was last stocked 2025, averaging 4.2 in. Smallmouth Bass, Largemouth Bass, and Northern Pike are recorded here outside the stocking reports.
When is Castle Rock Lake stocked?
Last stocked 2025. It is stocked about 2 times a year since 2010. No plants recorded in 2020.
How big are the fish stocked at Castle Rock Lake?
Stocked fish average 9.3 in. Muskellunge average 11 in. Yellow Perch average 4.2 in.
How do you get on Castle Rock Lake?
The nearest town is Town of Germantown (Juneau County), WI. Facilities include restrooms, dock, and cleaning station. At least ten public ramps and a carry-in across Adams and Juneau counties; several need a state park vehicle sticker or a daily fee, and ADA access and restrooms vary by landing. From shore, use Buckhorn State Park's 90-foot accessible pier, the Buckhorn bridge or the canoe launch.