Twenty-four members of the public met near Boulby Potash Mine on a bright and breezy Spring day to explore the alum quarries and former works at Boulby.
The group stops at Boulby Grange, site of the former alum house.
The group stops to inspect the route of the alum liquor trough near Rockhole Hill.
On the edge of the cliff looking at the site of Louis Hunton's measured section.
Approaching the west end of the quarries where a later working was founded.
Beth speaks about the alum-making process at Sallow Tree Hole.
View of Cowbar Nab from Sallow Tree Hole.
Reptile vertebra weathering out of the shale left in-situ for the enjoyment of others.
After a steep climb up the cliff the group returning on the Cleveland Way above Rockhole.
View of Sallow Tree Hole and Rockhole alum quarries in the foreground, and Cowbar Nab and Staithes farther along the coast.
Boulby Alum Works.
Twenty-four members of the public met near Boulby Potash Mine on a bright and breezy Spring day to explore the alum quarries and former works at Boulby.
The group stops at Boulby Grange, site of the former alum house.
The group stops to inspect the route of the alum liquor trough near Rockhole Hill.
On the edge of the cliff looking at the site of Louis Hunton's measured section.
Approaching the west end of the quarries where a later working was founded.
Beth speaks about the alum-making process at Sallow Tree Hole.
View of Cowbar Nab from Sallow Tree Hole.
Reptile vertebra weathering out of the shale left in-situ for the enjoyment of others.
After a steep climb up the cliff the group returning on the Cleveland Way above Rockhole.
View of Sallow Tree Hole and Rockhole alum quarries in the foreground, and Cowbar Nab and Staithes farther along the coast.