Credit R at Old Derry Rd

CREDIT RIVER ON CVC

Credit R at Old Derry Rd (170) is a real-time streamflow monitoring station on the CREDIT RIVER in ON, operated by Credit Valley Conservation. Riverbot tracks its streamflow and alerts anglers the moment flow and temperature hit their fishing window.

CVC station ID: 170
Operated by: Credit Valley Conservation
Province: ON
Coordinates: 43.6221, -79.7336

Live conditions & history

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Fishing regulations

FMZ 16 zone default

Species regulated in this area

Riverbot has no evidence-backed fish list for this gauge. These are species covered by the regional rules, not a claim that they occur at this station.

FMZ 16 zone default only. Water-specific, national-park, sanctuary, licence, and in-season exceptions may apply.

Atlantic salmon Open · Harvest status unknown Apr 25 – Sep 30 Details Close
- Apr 25 – Sep 30
  
  Official rule · retrieved Jul 25, 2026
Brook trout Open · Harvest allowed within limits Apr 25 – Sep 30 Details Close
- Apr 25 – Sep 30
  
  Sport licence catch-and-possession limit
  5
  
  Conservation licence catch-and-possession limit
  2
  
  Official rule · retrieved Jul 25, 2026
Brown trout Open · Harvest allowed within limits Apr 25 – Sep 30 Details Close
- Apr 25 – Sep 30
  
  Sport licence catch-and-possession limit
  5
  
  Conservation licence catch-and-possession limit
  2
  
  Official rule · retrieved Jul 25, 2026
Channel catfish Open · Harvest allowed within limits Open all year Details Close
- Open all year
  
  Sport licence catch-and-possession limit
  12
  
  Conservation licence catch-and-possession limit
  6
  
  Official rule · retrieved Jul 25, 2026
Crappie Open · Harvest allowed within limits Open all year Details Close
- Open all year
  
  Sport licence catch-and-possession limit
  30
  
  Conservation licence catch-and-possession limit
  10
  
  Official rule · retrieved Jul 25, 2026
Lake trout Open · Harvest allowed within limits Jan 1 – Sep 30 Details Close
- Jan 1 – Sep 30
  
  Sport licence catch-and-possession limit
  2
  
  Conservation licence catch-and-possession limit
  1
  
  Official rule · retrieved Jul 25, 2026
Lake whitefish Open · Harvest allowed within limits Open all year Details Close
- Open all year
  
  Sport licence catch-and-possession limit
  12
  
  Conservation licence catch-and-possession limit
  6
  
  Official rule · retrieved Jul 25, 2026
Largemouth and smallmouth bass combined Open · Harvest allowed within limits Jun 27 – Nov 30 Details Close
- Jun 27 – Nov 30
  
  Sport licence catch-and-possession limit
  6
  
  Conservation licence catch-and-possession limit
  2
  
  Official rule · retrieved Jul 25, 2026
Muskellunge Open · Harvest allowed within limits Jun 6 – Dec 15 Details Close
- Jun 6 – Dec 15
  
  Sport licence catch-and-possession limit
  1
  
  Size rule
  must be greater than 91 centimetres
  
  Official rule · retrieved Jul 25, 2026
Northern pike Open · Harvest allowed within limits Jan 1 – Mar 31; May 9 – Dec 31 Details Close
- May 9 – Dec 31
  
  Sport licence catch-and-possession limit
  6
  
  Conservation licence catch-and-possession limit
  2
  
  Official rule · retrieved Jul 25, 2026
Pacific salmon Open · Harvest allowed within limits Apr 25 – Sep 30 Details Close
- Apr 25 – Sep 30
  
  Sport licence catch-and-possession limit
  5
  
  Conservation licence catch-and-possession limit
  2
  
  Official rule · retrieved Jul 25, 2026
Rainbow trout Open · Harvest allowed within limits Apr 25 – Sep 30 Details Close
- Apr 25 – Sep 30
  
  Sport licence catch-and-possession limit
  2
  
  Conservation licence catch-and-possession limit
  1
  
  Official rule · retrieved Jul 25, 2026
Splake Open · Harvest allowed within limits Open all year Details Close
- Open all year
  
  Sport licence catch-and-possession limit
  5
  
  Conservation licence catch-and-possession limit
  2
  
  Official rule · retrieved Jul 25, 2026
Sunfish Open · Harvest allowed within limits Open all year Details Close
- Open all year
  
  Sport licence catch-and-possession limit
  50
  
  Conservation licence catch-and-possession limit
  25
  
  Official rule · retrieved Jul 25, 2026
Walleye and sauger combined Open · Harvest allowed within limits May 9 – Dec 31; Jan 1 – Mar 15 Details Close
- May 9 – Dec 31
  
  Sport licence catch-and-possession limit
  4
  
  Conservation licence catch-and-possession limit
  2
  
  Size rule
  not more than 1 greater than 46 centimetres
  
  Official rule · retrieved Jul 25, 2026
Yellow perch Open · Harvest allowed within limits Open all year Details Close
- Open all year
  
  Sport licence catch-and-possession limit
  50
  
  Conservation licence catch-and-possession limit
  25
  
  Official rule · retrieved Jul 25, 2026
Lake sturgeon Closed Closed all year Details Close
- Closed all year
  
  Official rule · retrieved Jul 25, 2026

General area restrictions

Period not confirmed

Sport licence catch-and-possession limit
5

Conservation licence catch-and-possession limit
2

Limit details
total daily catch possession limit for all trout salmon species combined

Official rule

Effective Jan 1, 2026 – Sep 14, 2027 · evaluated for 2026-07-30 in America/Toronto

Regulations shown are for reference only and may not reflect in-season changes. Always verify current regulations with the Ontario Fishing Regulations Summary before fishing.

🪰 Hatch Calendar

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A month-by-month hatch calendar for this river — which insects are emerging now, hook sizes, and patterns to fish — collected from fly shops and guides who know it.

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