GEOLOGICAL features that people fail to notice.

That was the topic of a recent outing.

The Ruthin & Berwyn U3A geology groups November outing was a geological walk around Ruthin, guided by group member Brian Hubble and Isabel Stewart.

Those present met in the grounds of St Peters Church in front of the lovely stone Almshouses.

The stone is 330 million-year-old limestone complete with fossils, brachiopods, crinoids and corals.

Around the doorways and windows, the stone work is different - it's sandstone and 250 million years old.

The two pillars outside Ruthin County Hall are a delight.

Large thumbnail fragments of blue felspar twinkle amongst the black Larvikite pillars, an igneous rock probably from a mine in Norway.

The enormous sandstone pillars outside the library were mined locally, probably dressed at the quarry site then transported individually by cart and horses, which is quite a task!

Marble steps outside the old picture house may have come from Italy.

The war memorial is built of slate, sandstone and grey granite and the large stone, Maen Huail, outside the old Barclays Bank is a limestone erratic transported underneath the moving ice in the last Ice Age - 12,000 years ago.

It was deposited in the town when the ice melted.

It could have travelled for miles.

In St Peter's Square, the clock tower, Peers Monument, is made of limestone and bands of coloured sandstone.

Brachiopod fossils are visible in the limestone.

The kerb stones are made of limestone and are absolutely full of crinoid fossils, probably from a quarry near Matlock.

The relatively new built stone walls around B&M and just beyond the Co-op also have surprises.

A single green rock, purple stained rocks and others of interest.