When was Riley Slough last stocked?

The most recent stocking season on record for Riley Slough is 2006. Washington's source reports by season, not an exact date.

Does a stocking record mean the fish are still there?

No. A record means fish were reported stocked. Fish may have been caught, moved or died since. Always check current regulations before fishing.

StockedSpots

Home/ Washington/ Snohomish County/ Riley Slough

Stocked last season

Riley Slough Fish Stocking

Snohomish County, Washington · 2005 to 2006 on record

According to WDFW records, Riley Slough has 2 stocking records on file across 1 species. The most recent stocking season represented is 2006.

Coho

Check regulations

Stocking records

4,800

Fish reported stocked

Species

2006

Latest season

Stocking activity by season

2 seasons on record, most in the 2006 (1 records). Click a bar to jump to that season below.

1 records

2006 · 2,300 fish

2005

2006

Stocking records per season (labelled by the season's end year). Washington's source reports by season, so records aren't broken out by month.

Most-stocked species

Coho 2 records

Location

Exact coordinates not yet available · Snohomish County

Map not available yet

We don't have coordinates for this water on file.

Stocking history

Values shown exactly as the agency reported them; species names are normalized for search.

SpeciesFish stockedSizePhase

Coho 2,300 Fingerling · SKY VALLEY EDUCATION CENTER —

A stocking record does not guarantee fish remain present or may legally be harvested. Check current Washington fishing regulations →

Quick facts

Latest season 2006

Most stocked Coho

Species Coho

County Snohomish

Seasons on record 2005 – 2006

Fish reported 4,800

Coordinates —

Data source

Compiled from public records published by the Washington Department of Fish and Wildlife. StockedSpots is independent and not affiliated with or endorsed by WDFW.

Source: Washington Department of Fish and Wildlife (WDFW). Data last checked September 1, 2026.

View WDFW source →

Frequently asked questions

WDFW records show Riley Slough stocked with Coho.

See something that looks off?

Every stocking record on StockedSpots is pulled directly from official state wildlife agency sources — you can see exactly where each state's data comes from on our data sources page. If a record looks wrong, or you'd like a page reviewed or removed, let us know and we'll look into it.

Report an issue →