In November 2008, after a big flood, part of the wallows was filled with silt (fine sand) so instead of it being a wet stoop, it was crawl over the silt. The movement of sediment is a natural occurrence from Treasury Sump, down Upper Gallery, through Mucky Ducks, The Wallows, Five Arches and eventually out through the resurgence. This occurs during flood conditions when the water from Speedwell overflows into Peak.

Well, after the flood at the start of February 2011, Treasury Sump flowed resulting in the silt been scoured out once again, so this is now wet stoop again. This silt has been deposited in 1947 Chamber and in Five Arches. Subsequently following this flood, Treasury Sump is wide open again for divers.

News Flash

EA Peakshole Water level Logger at Goosehill Bridge, Castleton

The Environment Agency have installed EA water depth logger at Goosehill Bridge, Castelton. This is now live at: . The water depth is updated every 15 minutes and the datum is the crest of the weir that was installed in 1984/5 by TSG and a group from Manchester Poly. The metre ruler on the left bank of the river when looking downstream from the bridge has the same datum so the levels on the web should be the same as the levels on the ruler.. The outputs contributing to the total flow are Peak Cavern, Slop Moll, Peakshole Sough and Russet Well.

Read more: EA Peakshole Water level Logger at Goosehill Bridge, Castleton