The River Mimram is a chalk stream flowing through Hertfordshire, offering a mix of coarse and game fishing opportunities in a pastoral setting. Despite its poor water quality status, the river still holds populations of chub, roach, and pike, though catches can be inconsistent. Access is available through local fishing clubs and riparian agreements, though anglers should check permit requirements with the Environment Agency and landowners before fishing.
River Mimram observes the standard close season: 15 March – 15 June (rivers, England & Wales). Always check local byelaws before your visit. A rod licence alone does not grant access — most stretches require club membership or a day ticket in addition.
Water level data from the Environment Agency Real Time Flood Monitoring API. Nearest gauging station. Always verify conditions on arrival.
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River Mimram holds carp, chub, roach, rudd, dace, perch, pike, gudgeon, grayling, trout, eel, bleak.
Carp are a popular target on River Mimram — handle carefully with a landing net and unhooking mat, and return promptly.
Trout fishing on River Mimram may be subject to season restrictions set by the local club or riparian owner — always confirm before your session.
An EA rod licence is required by law to fish River Mimram. Club membership or a day ticket is also required on most stretches.
To fish River Mimram, you need a valid EA rod licence, available online from gov.uk. Annual, day and 8-day licences are available. In addition to the rod licence, you will need club membership or a day ticket from the controlling angling club or riparian owner for most stretches of River Mimram.
Always check conditions before you visit. Water quality, access and rules can change seasonally. The EA's Catchment Data Explorer provides up-to-date water quality information for River Mimram.
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