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Slate
4/4Welsh poet Gillian Clarke counts the human cost of quarrying Snowdonia's ubiquitous slate.

Granite
3/4Sculptor Peter Randall-Page describes the obduracy of Dartmoor's granite boulders.

Sandstone
2/4Walker and geologist Ronald Turnbull reflects on sandstone's place in our landscapes.

Limestone
1/4Sue Clifford, co-founder of Common Ground, reflects on England's limestone landscapes.