Historic monitoring evidence · Environment Agency
6.0 Toll Road, Grosmont ESK/SA/Q/003
Yorkshire · survey site
This page records ecological survey evidence. It is not proof of current fish presence, abundance, fishing quality, access, permission or safety at this location.
Observed taxa
What monitoring recorded here
Taxa are ordered by latest survey date. Counts and records reflect monitoring events, not an angling forecast.
Brown / sea trout
Salmo trutta- First record
- 14 Oct 1999
- Latest record
- 2 Oct 2025
- Survey events
- 23
Atlantic salmon
Salmo salar- First record
- 14 Oct 1999
- Latest record
- 2 Oct 2025
- Survey events
- 23
Minnow
Phoxinus phoxinus- First record
- 14 Oct 1999
- Latest record
- 2 Oct 2025
- Survey events
- 22
Stone loach
Barbatula barbatula- First record
- 14 Oct 1999
- Latest record
- 2 Oct 2025
- Survey events
- 21
European eels > elvers
Anguilla anguilla- First record
- 30 Sept 2002
- Latest record
- 2 Oct 2025
- Survey events
- 6
Lampetra sp. ammocoetes
Lampetra- First record
- 19 Sept 2016
- Latest record
- 2 Oct 2025
- Survey events
- 2
European eel
Anguilla anguilla- First record
- 14 Oct 1999
- Latest record
- 25 Sept 2024
- Survey events
- 9
Brown / sea trout x salmon hybrid
Salmo trutta x Salmo salar- First record
- 5 Oct 2018
- Latest record
- 5 Oct 2018
- Survey events
- 1
European elvers
Anguilla anguilla- First record
- 5 Oct 2018
- Latest record
- 5 Oct 2018
- Survey events
- 1
River lamprey ammocoetes
Lampetra fluviatilis- First record
- 9 Oct 2017
- Latest record
- 9 Oct 2017
- Survey events
- 1
Grayling
Thymallus thymallus- First record
- 16 Oct 2001
- Latest record
- 24 Aug 2011
- Survey events
- 8
Lamprey sp.
Petromyzontidae- First record
- 14 Oct 1999
- Latest record
- 24 Aug 2011
- Survey events
- 5
Rules and access
Check before you travel.
Environment Agency ecology records do not carry fishing-rights boundaries or live restrictions. Confirm the fishery owner, permission, local byelaws, seasonal rules, safety notices and current conditions before setting out.
Check live freshwater fishing rulesProvenance
Source, licence and boundary
- SourceEnvironment Agency Ecology & Fish Data
- LicenceOpen Government Licence v3.0
- Source copy retrieved23 Jul 2026
- Terms checked23 Jul 2026
- CoverageHistoric monitoring evidence, separately dated per record
- Not assertedCurrent presence, access, permission, fishing quality or safety