Neumann’s Flash was formed when a salt mine collapsed in 1873. The Northwich salt mines had expanded rapidly without due safeguards, so inadequate supports were left to hold up the ground overhead.
A chemical industry developed around the production of salt, so the enormous holes created by this collapse, and the even more dramatic collapse of the nearby Ashton’s Flash in 1880, were in the 1950s used to dump lime waste. After dumping ceased, nature gradually began to recover and since the 1970s the area has been gradually developed into a country park, now part of the Mersey Forest initiative. Yes nature will recover, if given half a chance. See the story here.
Today, this is a great area for walking and birding, joining up with the nearby Anderton and Marbury parks.
The picture shows Neumann’s Flash from one of its three hides, with a fair sprinkling of birds on the water, as the sun slowly sinks towards the horizon.
The county of Cheshire contains a number of smallish lakes, or meres. Many date back to the glacial period of the last ice age, ‘occupying hollows in the glacial drift surface of the Cheshire Plain’ (see itemised list). The lake in Tatton Park, known as Tatton Mere, is one of these meres of glacial origin.
Just north west of the top of Tatton Mere lies a smaller lake, named Melchett Mere, but at a noticeably lower elevation. Is this another glacial lake? It seems not. Cheshire also has a history of salt extraction and mining, notably in the area around nearby Northwich and Wincham from the 17th century. Uncontrolled mining activity led to great subsidences of ground and the formation of lakes, such as the notorious Ashton’s and Neumann’s flashes near Wincham.
Effects of the salt mining activites, and particularly wild brine pumping, were often felt many miles away. According to the National Trust, Melchett Mere in Tatton Park was formed by a sudden collapse in 1922. The resulting lake was named by Lord Egerton after the then chairman of the extractive company he believed to have been responsible (presumably Henry Mond, 2nd Baron Melchett, who became deputy chairman of ICI in the 1940s).
Subsidence due to brine pumping activities is serious business in Cheshire, as evidence by the existence of the Brine Subsidence Compensation Board. Some of the land in this area is still subsiding. Notably this lies on the proposed route for the HS2 high speed train. I hope those guys know what they’re getting into!