BC Imp 1
Latitude: 51°31'11.5"
Longitude: 2°33'55"
BC Imp 2
Latitude: 51°31'13.7"
Longitude: 2°33'52.1"
BC Imp 3
Latitude: 51°31'21.3"
Longitude: 2°34'0.4"
BC Imp 4
Latitude: 51°31'28"
Longitude: 2°33'57.2"
BC ref 1
Latitude: 51°38'17.6"
Longitude: 2°41'15.6"
BC ref 2
Latitude: 51°38'21.1"
Longitude: 2°41'23.2"
BC ref 3
Latitude: 51°38'32.2"
Longitude: 2°41'20.5"
BC ref 4
Latitude: 51°38'34.3"
Longitude: 2°41'18.1"