View from Barrow Hill, Dudley - 500' (152m)

Summit of Barrow Hill - weathered remains of a dolerite plug ( Carboniferous ~315 Mya)

East Quarry (SW section) rock quarried for local buildings and then used to pave streets of Birmingham in 19th Century

East Quarry - Local siliceous clay (Etruria Marl) metamophosed by the dolerite intrusion - reddish-brown colouration. Olivine dolerite beneath. SW side of disused quarry; section about 5' high

East Quarry - "Black Country equivalent of the Giant's Causeway" - hexagonal dolerite columns Part of the feeder network of volcanic pipes - evidence of slow cooling of the magma (1100-1200 deg C)

Tansey Green Nature Reserve - old clay quarry with spoil heaps from coalfield behind lake Etruria Marl clay quarried for bricks until 1990s

Tansey Green Quarry - searching for fossils in the ash - earliest fossils of modern fir trees found here - dated to 306Mya

Wall around St Marks churchyard - Gomal sandstone, Victorian brick & slag from ironworks

St Marks Church, Pensnett - built 1849 - Silurain sandstone - known locally as the "Cathedral of the Black Country"

Sandwell - Rowley Hills formation - Blue Rock Quarry - Rowley Rag (dolerite) used as building stone 200yrs ago

Blue Rock Quarry - Rowley Rag - onion-skin weathered dolerite (very dark when first exposed; weathers to a yellow onion-peel texture)

Blue Rock Quarry - Rowley Rag - onion-skin weathered dolerite

Blue Rock Quarry - Rowley Rag - onion-skin weathered dolerite

Blue Rock Quarry - Rowley Rag - onion-skin weathered dolerite

Blue Rock Quarry - Rowley Rag - onion-skin weathered dolerite

Blue Rock Quarry - Rowley Rag - onion-skin weathered dolerite

Blue Rock Quarry - Rowley Rag - onion-skin weathered dolerite

View from Darby's Hill looking across Dudley to Wolverhampton

Dudley Castle (from Darby's Hill) built 1170 on an outcrop of the Wenlock Group limestone