Shale crags

Ordered by the number of climbs recorded. About shale.

Rock type All Limestone (534) Granite (314) Sandstone (285) Gritstone (130) Rhyolite (121) Gneiss (41) Schist (35) Slate (25) Dolerite (23) Volcanic Tuff (19) Basalt (16) Culm (15) Quartzite (15) Conglomerate (12) Gabbro (12) Indoor (12) Andesite (5) Greenstone (3) Chalk (2) Chert (2) Syenite (2) Unknown (2) Artificial (1) Serpentinite (1) Shale (1)

Crag	Location	# Climbs
Trwyn Y Tal	United Kingdom / Wales / Caernarfon	1