Reasons for Designation
Approximately 10,000 lead industry sites are estimated to survive in England,
spanning nearly three millennia of mining history from the later Bronze Age
(c.1000 BC) until the present day, though before the Roman period it is likely
to have been on a small scale. Two hundred and fifty one lead industry sites,
representing approximately 2.5% of the estimated national archaeological
resource for the industry, have been identified as being of national
importance. This selection of nationally important monuments, compiled and
assessed through a comprehensive survey of the lead industry, is designed to
represent the industry's chronological depth, technological breadth and
regional diversity.
Lead rakes are linear mining features along the outcrop of a lead vein
resulting from the extraction of relatively shallow ore. They can be broadly
divided between: rakes consisting of continuous rock-cut clefts; rakes
consisting of lines of interconnecting or closely-spaced shafts with
associated spoil tips and other features; and rakes whose surface features
were predominantly produced by reprocessing of earlier waste tips (normally in
the 19th century). In addition, some sites contain associated features such as
coes (miners' huts), gin circles (the circular track used by a horse operating
simple winding or pumping machinery), and small-scale ore-dressing areas and
structures, often marked by tips of dressing waste.
The majority of rake workings are believed to be of 16th-18th century date,
but earlier examples are likely to exist, and mining by rock-cut cleft has
again become common in the 20th century. Rakes are the main field monuments
produced by the earlier and technologically simpler phases of lead mining.
They are very common in Derbyshire, where they illustrate the character of
mining dominated by regionally distinctive Mining Laws, and moderately common
in the Pennine and Mendip orefields; they are rare in other lead mining areas.
A sample of the better preserved examples from each region, illustrating the
typological range, will merit protection.
The Peakshill or Oden sough is an unusual dual-function mining feature and a
well-preserved example of responses to the drainage and geological problems
faced by lead miners in the early 18th century. The monument will preserve
valuable technological information in its earthworks and buried remains,
contributing to an understanding of mining technology employed during this
period in Derbyshire.
Details
The Peakshill or Oden sough lies on gently sloping ground below the steep
ridge called Rushup Edge. The monument includes the earthwork and buried
remains of the sough, a drainage tunnel serving the Oden lead mine.
The Oden or Odin mine, as it is sometimes spelt, is one of the oldest in the
region, possibly having been worked as early as the 13th century. It was
particularly plagued by drainage problems caused by local geology. Here, as in
other Peak District mines, the hilly terrain made the driving of soughs a
feasible and relatively economic solution to drainage problems, and the Oden
mine had several.
The Peakshill sough was driven between 1726 and 1729, a time of particularly
high productivity for the mine. Whilst a fine example of a drainage tunnel, it
is thought also to have been intended as an exploratory level to locate
northern reaches of the Oden lead-bearing vein. In fact it did not reach
lead-bearing strata, since the workable vein dips beneath the cover of Rushup
Edge immediately north of the sough.
The sough is visible as a linear series of well-preserved shaft mounds, 10m-
30m apart, which mark its route. These are the remains of ventilation shafts,
which were sunk along the course of the sough to provide air for the miners
cutting it. The mounds are large, ranging between 8m and 15m across and 1m-3m
height. The larger mounds are located at the north and south ends of the
sough, with smaller ones generally in the centre, where the proximity of some
mounds gives the appearance of an undulating bank with intermittent
depressions.
All modern field boundaries are excluded from the monument, although the
ground beneath them is included.
MAP EXTRACT
The site of the monument is shown on the attached map extract.