Historical Information Sheets on Individual Collieries: M

Scope and Content

Information sheets on the following collieries can be found within this file (please note that the amount of information on each sheet varies):

Maendy

Maerdy (Rhymney)

Maerdy (Gwaun-Cae-Gurwen)

Maesgwyn

Maesmelyn Level

Maesteg Deep

Maesteg Merthyr (Oakwood)

Maestir Mawr

Maesycwmmer

Maesycwmmer Junction

Main Collieries

Maindy

Major Red Ash

Mammole

Marchowell

Mardy (Rhymney)

Mardy (Rhondda) (includes an extract from an article)

Margaret

Marine (includes additional information sheets and a copy of a Memorial booklet commerating the 52 miners who died in an explosion at Marine Colliery, 1 Mar 1927)

Marine Level

Markham (includes an additional information sheet and a copy of publication 'Markham Colliery and Llanover Pumping Station', published Apr 1946)

Maritime

McLaren (Merthyr)

Meiros

Mercantile

Meredith Pit

Merthyr Dare

Merthyr Llantwit

Merthyr Vale (includes an extract of an article concerning the geology of the colliery)

Middle Duffryn (includes an extract from an accident report/inquest, 13 people killed in Dec 1850)

Milfraen

Millbrook South Level

Mine Slope (Viponds)

Mine Slope (GKN)

Moody's Graigola (also known as Felinfran)

Morfa (includes a copy of a newspaper article from 1977 about a disaster that killed 87 men and boys in 1890)

Morlais

Mount Anthracite

Mountain (Swansea Anthracite)

Mountain Levels

Mynachdy Slant

Mynachdy Level

Mynydd Bach Y Glo

Mynydd Bychan

Mynyddislwyn

Mynydd Maen Slant (includes additional information sheets)

Mynydd Newydd

Mynydd Sylen

Custodial History

Previous reference number: DNCB/67/12/1