Okee dokee... it appears thats some seams outcropped and were worked in early day by drift but some of the early collieries in the Newhall area were probably working quite shallow stuff maybe even at 15-40 odd yards in depth. Mines in the area from the mid 1800s such as (Colly name in bold)-
Newhall ParkLether seam 90yds deep
Uureka Seam 144yds deep
Stanhope 171yds deep
SwadlincoteEureka 284 yds deep
Woodfield 207 yds deep
Stockings 264 yds deep
Coton Park and Linton area-
Moira MainMain 197 yds
GranvilleBlock 132yds
Little 226yds
Main 290yds
Woodfield 322yds
Eureka 357yds
Cadley HillLittle 40yds
Main 106yds
Woodfield 155yds
Stockings 169yds
Eureka 205yds
Stanhope 232yds
Church GresleyLittle 210yds
StantonMain 115yds
Woodfield 177yds
Eureka 215yds
Little 115yds
Mines depths towards and in Leic's typically could be from as little as 50yds and were recorded as 63yds at Swannington.
Hope that gives you an overview of these typical seams/mine depths for the area
Regs IC :thumbup:
Aaaaaaaaaaaaaaaaaaagh Creeper!!!!!