Weathering and erosion slowly chisel ... Back up on the mountains, snow and ice build up into glaciers that weigh on the rocks beneath and slowly push them downhill under the force of gravity.

Join Isla and Connor as they climb Ben Nevis and explore features of glaciated erosion: corries ... This is where a glacier, a massive river of flowing ice, forms. Glaciers form the corrie ...

Research has shown the complex history behind this gap of missing time, and theories range from the break-up of an ancient supercontinent, causing tectonic uplift and erosion, to a dramatic shift ...