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length in United Kingdom — 73 km
Flows into North Sea
Recorded 107 catches here. Most commonly caught: Roach, Perch, Bream. Peak season: year-round.
River Colne — a spot well known among anglers. About 73 km long. Flows into North Sea. A smart bite calendar — moon phase, atmospheric pressure, and weather combined into an hourly fish-activity forecast for the coming days. The river runs through Buckinghamshire, Greater London, Hertfordshire and Surrey — the bite forecast is computed for each stretch separately, from the weather of its own region.