Cwm-y-glo is a small village in Wales, 4+1⁄2 miles (7 km) east of Caernarfon, between Llanberis and Llanrug.

[1] The focus of the village is on the original roadway, now bypassed by the A4086 road, which follows the approximate line of the former railway.

The area was home to the charcoal sub-industry, which the foundries at the various quarries depended on to fabricate iron to support the slate industry.

To this day an X is inscribed on a wall at Clegir along the old road between Bryn Bras Castle and Llanberis, marking the spot where a wheel and harness from one of the carts was flung.

[2][3] In April 2008 a plaque commemorating the tragedy was unveiled on the rock face opposite Y Fricsan, the village pub.