| Old Moss Lead Vein | |
|---|---|
  Site of Special Scientific Interest | |
| Location | MAGiC MaP |
| Nearest town | Alston,Cumbria |
| Coordinates | 54°47′5″N2°16′50″W / 54.78472°N 2.28056°W /54.78472; -2.28056 |
| Area | 0.6 ha (1.5 acres) |
| Established | 1961 |
| Governing body | Natural England |
| Website | Old Moss Lead Vein SSSI |
Old Moss Lead Vein, also known as Killhope Head, is aSite of Special Scientific Interest in theWear Valley district ofCounty Durham, England. It consists of an exposure of amineral vein in the valley of theKillhope Burn, just upstream from theNorth of England Lead Mining Museum.
The vein is visible as a 5-metre thickintrusion trending northeast–southwest through the GreatLimestone. Mineralisation in the vein typifies the inner fluorite zone of theNorth Pennines Orefield,[1] withgalena andsphalerite in the centre of the vein giving way tofluorite andsiderite toward the periphery. The site, under the name Killhope Head, has been designated of national importance in theGeological Conservation Review.[2]
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