Madingley Hall: TL395605
Madingley Wood: TL402597
Magog Down: TL493528
Malton: TL372483
Manea (Carrolls ground): TL491890
Manea Fifties: TL512918
Manea Pit: TL482892
Manea (Willow Farm): TL490900
Manor Farm (Fowlmere) - See Fowlmere (Manor Farm)
March Farmers - See Nene Washes (March Farmers)
March Tip: TL408987
March (Whitemoor Tip) - See March Tip
Mare Fen: TL366697
Mare Way (Eversden): TL352524
Marholm: TF148022
Marsh Lane GP: TL298698
Maxey: TF128081
Maxey GP: TF130075
McCains BP: TL237970
Melbourn: TL385445
Melbourn Bury: TL374443
Meldreth: TL375460
Meldreth Pits: TL385465
Mepal: TL440810
Mepal Airfield: TL440795
Mepal GP: TL425830
Mere Farm (Ramsey) - See Ramsey (Mere Farm)
Mere Way Impington: TL460628
Merryshaws Spinney: TF091029
Middle Fen: TL355696
Midloe Grange Farm: TL164646
Milking Nook: TF184058
Mill Pond, Cambridge: TL446578
Milton CP: TL480625
Milton Park: TL145995
Milton Tip: TL467625
Molesworth Airfield: TL080775
Monks Hardwick: TL214615
Monks Wood: TL200800
Moonshine Gap: TL128857
Morborne: TL139914
Morborne Hill: TL125914
Morton's Leam: TL280988
Mucklands Wood: TF156016
Murrow: TF379056
Must Farm Pit - See McCain BP
Mutlow Hill: TL5454