Today, I visited a group of intriguing rock features on the Helvellyn range in the central Lake District. This remote plateau is around 880m (2880 feet) above the sea, and was in the grip of winter.

Earlier this week I presented my first research paper about Neolithic optical effects at the Theoretical Archaeology Group conference, hosted by Cardiff University.

This afternoon, heavy rain animated the rock art site of Cairnbaan, near Kilmartin.

An evening visit to Temple Wood, Kilmartin Glen, in fading light and pouring rain.

We find quartz tools deposited among the cup and ring markings.

Unusual optical effects occurred at the site this morning...

Working begins on surveying the natural mound upon which the outcrop of decorated rock is located.

Another day catching up with recording, and another quartz deposit is found.

In Trench 2, I begin to remove the stones set against the outcrop...

Before we can investigate the stone setting, this feature must be planned.

Today, we continued to reveal and clean the features in Trenches 1 and 2.

Trench 1 reveals the second surprise of the project.

This morning we began work on excavating Trench 2 and Trench 3.

This morning we began work on removing the turf and topsoil for three small trenches.

The first day of excavations. at a rock art site in the Southern Highlands of Scotland.

Autumn sunshine reflects upon the ocean at Kilmory and I see sun dogs and a halo.

I'm very excited to announce that I'm now acting as a Curatorial Advisor to Kilmartin Museum's Redevelopment project.

This week I recorded an interview, for BBC Radio 4's Open Country, at a rock art site on a Scottish mountain.

Ketley Crag, near Wooler, is an unusual rock art sites set within a rock shelter.

A rather grey day was ideal for recording three dimensional models of the largest panel of rock art at Chatton Park Hill, near Wooler.