River Mun

The River Mun or Mundesley Beck is a river in the north of the county of Norfolk, England. The source of the river can be found in the Parish of Northrepps. The river finally runs into the North Sea in the village of Mundesley.

The source

The source of the River Mun can be found next to Craft Lane, close to Furyhill plantation between Northrepps and the hamlet of Frogshall. It runs in a south easterly direction through a wooded valley and passes under Craft Lane close to Frogshall Farm House. From here it runs through woodland for a short distance and into a large pool called Little Broad. From Little Broad, still in woodland, the river falls over a weir and into some marshy woodland known as Osier Carr. Deep in the heart of Osier Carr Freshwater mussels (Bivalvia: Unionidae) can be found. The mussels are filter feeders, removing phytoplankton and other suspended particulate matter from the river. This removal of suspended matter from the water is often considered ecologically desirable, as it reduces phytoplankton blooms and in the treatment of drinking water. The river now passes under another lane from Sidestrand. From here the river feeds a system of ponds and sluices in an area known as the Grove. Many drains feed into the river here. The river now turns almost south and passes under another lane called Cromer Road and crosses countryside towards Ash Tree Farm and Ash Plantation. The river now widens slightly and begins to cross open countryside, slowly turning south east again. Along this section the Mun runs adjacent to several small reservoirs and ponds and drains.