Pymmes Brook Trail is located in the London Boroughs of Barnet and Enfield and is just under 10 miles (16 km) long. It is named after William Pymme a local landowner between 1307-1327. The trail is between Monken Hadley Common and the Lee Valley Leisure Complex at Edmonton or alternatively the River Lee Navigation at Pickett's Lock where the trail connects with the Lea Valley Walk. The trail only follows Pymmes Brook approximately as much of it passes through private land which is not open to the public. In its lower urban reaches much of the brook has been culverted to alleviate the risk of flooding.