Wales
Creigiau Gleision
676M
2218FT
About Creigiau Gleision
This distinctive, rocky ridge stands on the eastern edge of the Carneddau, offering a quieter alternative to the high central plateaus. Known for its craggy spine and steep drops, it provides a superb vantage point over Llyn Cowlyd and the Glyderau, making it a rewarding objective for those seeking solitude and rugged terrain.
Key Statistics
Rank
96th Highest in Wales
Parent Range
Snowdonia
Prominence
?
261.4m
Nearest Town
Capel Curig
Geology
You are hiking over ancient seabed muds and volcanic ash, reinforced by magma that once cooled deep underground.
Find It
OS Grid Reference
SH729615
Latitude
53.1355°N
Longitude
3.9013°W
Did You Know?
- •The name translates from Welsh as 'Blue Rocks,' referring to the distinctive hue of the crags when seen in certain light. In Welsh, the word glas (from which gleision derives) covers a spectrum of blue, green, and silver-grey, accurately describing the weathered volcanic rock found along the ridge.
- •Though lower than the central Carneddau giants, its position on the fringe of the range offers a celebrated 'sideways-on' view of the Ogwen Valley, where the full length of the Glyderau and the steep northern face of Tryfan are laid out in a single, unbroken line.
- •The mountain is defined by its long, undulating summit ridge which features two distinct tops; while the 676m northern summit is the highest point, the southern top offers a more dramatic outlook over the deep, reservoir-filled trench of Llyn Cowlyd.
- •Categorised as a Marilyn and a Hewitt, it is often bagged alongside the neighbouring Pen Llithrig y Wrach, though the boggy col of Gors Lwyd between the two is notorious for testing the waterproof credentials of any walker’s boots.
- •Despite the name suggesting 'Blue Rocks,' the most common colour encountered on a typical afternoon here is more likely to be the deep, saturated grey of a passing rain cloud.
