Location
SN 971 809 (Mine) SN 963 807 (trials)
Directions
On the roadside (B4518) from Llanidloes to Tylwch (just north of Tylwch) and marked as “levels” on the O/S Map. The trials are one the opposite side of the hill almost directly West and also marked “levels”. It is easier to go across the top of the hill from the East side rather than walk around the base of the hill on the West side as the trials are near the top and the hill is both tall and very steep.
Access
Landowner permission only (I have the landowners contact details)
Suggested Equipment
None
Length
Unknown
Flood Risk
The Trials cannot (in theory) flood as they are single adits and have only the usual ankle depth water at their entrances. The main mine entrance (by the roadside) has water to a depth of 2 feet. Flood risk is therefore unknown
Mine Attributes
Lead
Description
The main mine is apparently on six levels but, sadly, the two entrance adits are both collapsed. One adit is around 150 feet long before a collapse and the other is collapsed at the entrance (they sit next to each other for some reason).
The landowner states that cavers (ok, mine explorers) entered 8 years ago and it was not then collapsed where they reported it picked up a railway line and entered chambers.
There is a shaft on the hillside above the adits which is around 100 feet in depth but looks much more like a vein to surface when approached. The floor of the passage could easily be seen below (no water) but I had no SRT equipment to descend. Several nearby trees would make excellent anchor points.
Unexplored Passages
All of them.
Digs
The landowner intends to dig out the mine entrance to gain entry sometime during 2011.
Links
None Known
Subject: Cwmfron Mine 
Tue 01 Jun 2010, 11:38 am
