Castle Rocks State Park Fishing Pond

Flows into the Almo Creek

  • Recommended Fishing Water

Castle Rocks State Park Fishing Pond in Cassia County is 1.4 acres.

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Fish Stocking Records

Date
Species
Quantity
General Size
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Date
Species
Quantity
General Size
2024/08/29 Rainbow Trout - Triploid 751 Catchable (6+ inches)
2024/07/01 Rainbow Trout - Triploid 500 Catchable (6+ inches)
2024/06/10 Rainbow Trout - Triploid 500 Catchable (6+ inches)
2024/05/14 Rainbow Trout - Triploid 500 Catchable (6+ inches)
2023/08/30 Rainbow Trout - Triploid 750 Catchable (6+ inches)
2023/07/04 Rainbow Trout - Triploid 500 Catchable (6+ inches)
2023/06/02 Rainbow Trout - Triploid 500 Catchable (6+ inches)
2023/05/17 Rainbow Trout - Triploid 500 Catchable (6+ inches)
2022/08/30 Rainbow Trout - Triploid 750 Catchable (6+ inches)
2022/07/15 Rainbow Trout - Triploid 500 Catchable (6+ inches)
2022/06/16 Rainbow Trout - Triploid 500 Catchable (6+ inches)
2022/05/05 Rainbow Trout - Triploid 500 Catchable (6+ inches)
2021/08/03 Rainbow Trout - Triploid 750 Catchable (6+ inches)
2021/07/20 Rainbow Trout - Triploid 500 Catchable (6+ inches)
2021/06/23 Rainbow Trout - Triploid 500 Catchable (6+ inches)
2021/04/22 Rainbow Trout - Triploid 500 Catchable (6+ inches)
2020/07/28 Rainbow Trout - Triploid 750 Catchable (6+ inches)
2020/06/17 Rainbow Trout - Triploid 500 Catchable (6+ inches)
2020/04/21 Rainbow Trout - Triploid 1,000 Catchable (6+ inches)
2019/07/29 Rainbow Trout - Triploid 750 Catchable (6+ inches)
2019/06/28 Rainbow Trout - Triploid 500 Catchable (6+ inches)
2019/06/03 Rainbow Trout - Triploid 500 Catchable (6+ inches)
2019/05/01 Rainbow Trout - Triploid 500 Catchable (6+ inches)
2018/10/25 Rainbow Trout - Triploid 250 Catchable (6+ inches)
2018/08/08 Rainbow Trout - Triploid 1,001 Catchable (12-14 inches)
2018/06/14 Rainbow Trout - Triploid 500 Catchable (6+ inches)
2018/05/02 Rainbow Trout - Triploid 500 Catchable (6+ inches)
2017/08/29 Rainbow Trout - Triploid 750 Catchable (6+ inches)
2017/06/29 Rainbow Trout - Triploid 502 Catchable (6+ inches)
2017/04/26 Rainbow Trout - Triploid 501 Catchable (6+ inches)
2017/02/15 Whitefish 300 Catchable (6+ inches)
2016/09/29 Rainbow Trout - Triploid 750 Catchable (6+ inches)
2016/09/02 Rainbow Trout - Triploid 500 Catchable (6+ inches)
2016/06/20 Rainbow Trout - Triploid 750 Catchable (6+ inches)
2015/09/28 Rainbow Trout - Triploid 750 Catchable (6+ inches)
2015/08/20 Rainbow Trout - Triploid 500 Catchable (6+ inches)
2015/06/09 Rainbow Trout - Triploid 750 Catchable (6+ inches)
Source: IDFG Fish Stocking Database.

Licenses and Tags

Learn more about IDFG Licenses, Tags & Permits
 

Fishing Rules, 2025 - 2027

All Waters Open All Year

Except as modified in Special Rules
Fishing is not allowed within the posted upstream and downstream boundary of any fish weir or trap.

Daily Bag Limits

The following daily bag limits apply to all waters within each region except as modified in the Special Rules. The possession limit is 3-times the daily bag limit.

Special Rules

No Special Rules for Castle Rocks State Park Fishing Pond.
Magic Valley Region Bag Limits
Bass (Largemouth and Smallmouth)

  • Bass limit is 6, both species combined
  • None under 12 inches

Brook Trout

  • Brook Trout limit is 25
  • Harvest allowed during any open season unless otherwise noted under Special Rules - if gear or bait restrictions are listed, they apply when fishing for Brook Trout

Bull Trout

  • Bull Trout - catch-and-release

Kokanee

  • Kokanee limit is 6

Sturgeon

  • Sturgeon - catch-and-release
  • Sturgeon must not be removed from the water and must be released upon landing
  • Barbless hooks, sliding swivel device to secure a weight, and a lighter test line to secure weight to sliding swivel device are required. See fishing regulations for details

Tiger Muskie

  • Tiger Muskie limit is 2, none under 40 inches

Trout includes Brown Trout, Lake Trout, Golden Trout, Arctic Grayling, Cutthroat Trout, Rainbow Trout, land-locked Chinook and Coho Salmon, trout hydrids (.e.g. Tiger Trout)

  • Trout limit is 6, all species combined
  • In rivers and streams, only 2 of the 6 trout may be Cutthroat Trout
  • Bull Trout and Brook Trout are listed separately

Walleye

  • Walleye limit is 6

Whitefish

  • Whitefish limit is 25
  • Harvest allowed during any open season unless otherwise noted under Special Rules - if gear or bait restrictions are listed, they apply when fishing for whitefish

Protected Nongame Fish includes Northern Leatherside Chub, Shoshone Sculpin, Wood River Sculpin, and Bluehead Sucker (also known as Green Sucker)

  • May not be harvested or possessed

All Other Fish Species includes bullfrogs and crayfish

  • No bag, length or possession limit
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