Snowdonia: Glacial Landscapes and Their Impact

Glacial processes shaped Snowdonia's dramatic landscape through three main actions: erosion, transportation, and deposition. Freeze-thaw weathering weakened rocks, whilst glaciers used plucking (pulling away loose rocks) and abrasion (grinding like sandpaper) to carve the valleys. The ice moved through rotational slip, creating the distinctive features we see today.

This glacial erosion created spectacular glacial landforms including corries $armchair-shaped hollows$, arêtes $knife-edge ridges$, and pyramidal peaks like Snowdon itself. The valleys became glacial troughs - those classic U-shaped valleys that make mountain scenery so striking. You'll also spot hanging valleys, ribbon lakes, and scattered erratics (boulders dumped by retreating ice).

The landscape's exposed rock (slate, granite, limestone) and dramatic scenery now drive major economic activities. Tourism brought £430 million to Wales in 2013, with 450,000 people climbing Snowdon annually. Quarrying provides building materials, whilst sheep farming works well on the steep slopes with infertile soils. Forestry thrives here too - coniferous trees cope brilliantly with the low temperatures and heavy rainfall.

However, this creates serious conflicts. Tourism causes footpath erosion, littering, and traffic congestion (91% arrive by car). Quarrying provides jobs but creates noise and visual pollution that drives tourists away. House prices soar due to holiday home demand, and overgrazing by sheep reduces biodiversity.

Key Insight: Snowdonia shows how glacial landscapes create both economic goldmines and environmental headaches - managing this balance is crucial for sustainable development.