17 recorded deaths, 18 actual deaths due to explosion underground. fire was detected but unable to be extinguished, then boom. a highly sad and unfortunate event with many people still grieving to this day. unfortunately, money has always been more important than lives and though many new and improved methods have been implemented in safety there will always be 'disasters' when mining. you can always type box flat colliery into Google search for more infirmation.
Flat-floored valleys, also known as "box canyons," are generally formed by the erosion of softer rock layers between more resistant layers. Over time, water flow and erosion gradually carve out these valleys, resulting in flat floors due to the differential erosion rates of the various rock layers. Additionally, tectonic forces and glacial activity can also contribute to the formation of flat-floored valleys.
"Flat land" - flat / land "Joiners tool" - joiner's / tool
Plateaus are flat because they are formed by the erosion of softer rock layers, leaving behind a flat surface at a higher elevation.
A flat piece of ground is typically called a plain or a plateau, depending on its size and elevation. Plains are low-lying flat areas, while plateaus are elevated flat areas.
The flat face of a gem is called a table. It is the largest flat facet on the top of the gemstone, usually found in the center of the stone.
Benxihu Colliery happened in 1942.
Markham Colliery disaster happened in 1938.
Hartley Colliery Disaster happened in 1862.
Parc Slip Colliery happened in 1892.
Lofthouse Colliery disaster happened in 1973.
Holditch Colliery Disaster happened on 1937-07-02.
Gleision Colliery mining accident happened on 2011-09-15.
Hamstead Colliery was created in 1876.
Silverwood Colliery ended in 1992.
Shireoaks Colliery ended in 1991.
Seafield Colliery was created in 1960.
Kilnhurst Colliery ended in 1989.