Walks on the Edge of Time | Glen Calvie Circuit

Sunday 13 August 2017, 10.00
£15 / person

Local mountain guide John King leads the first of two walks along a newly mapped route that traces the edge of a meteorite impact crater made 1.2 billion years ago.

1.2 billion years ago, a meteorite hit the earth, creating an impact crater with the nearby village of Lairg at its centre. More than 100km in diameter, it ranks as one of the largest known impacts on Earth, and it is the first to be discovered in the UK. Now almost hidden from view by millenia of geological change and transformation, its discovery in 2015 was the result of a decade of observation and research that began with a thin section of rock under a microscope. 

Inspired by this deep time event where the astronomical and the geological intersect, John King mapped a route that traces the circumference of the meteorite crater. He then walked the route carrying a Google Trekker, capturing 360° imagery along its length. Extending from the vast peatland expanse of the Flow Country in the North, to the Dornoch Firth in the south, and from the rolling hills of East Sutherland to the rocky edge of Assynt in the west, the crater becomes a feature by which to explore the varied landscapes, land-uses, geology and wildlife that exist in northern Scotland today.

Glen Calvie circuit route

A circular walk through scenic surroundings, taking in forests, glaciated landscapes, and high moorland, all on well-constructed tracks. The route starts at Glencalvie Lodge, a Victorian-era sporting lodge located in pine woods 10 miles to the west of Ardgay. From the Lodge, the route heads up through the native woodlands of Glen Calvie, following the glen to its head below the imposing slopes of Carn Chuinneag. Heading east from here the glen is soon left behind and the route heads out onto wild moorland with great views west to the peaks and U-shaped valleys of the Alladale Estate and beyond. A gradual descent winds back down along the ridge of hills above Glen Calvie and returns to the Lodge, completing the circuit.

12km | 345m ascent | 5-6 hours including stops

Additional information

To book your place call us on 01431 821 327, or email enquiries@timespan.org.uk.
Payment is asked for at time of booking. In the event that the walk does not go ahead, a full refund will be given.

Accompanied children aged 10 and over are welcome on both walks and a £5 reduction is available for under 16s.

A map showing the meeting point for the day will be sent in advance. Limited return transport from and to Helmsdale is available. If this would be useful, please ask when booking.

About your guide

John King is a local mountain guide who runs King Mountaineering, offering guided hillwalking, scrambling, and outdoor skills training across the Northern Highlands.

Taking every opportunity to get out into the hills, he completed his first round of the Munros in 2013 and has explored many of the wilder and more remote corners of the Highlands in all seasons, building up an intimate knowledge of the Scottish hills and glens as well as a keen interest in the ecology, geology and history of the natural environment.

John is passionate about passing on his knowledge and skills, and sharing his enthusiasm for the hills with others. He is a qualified Summer Mountain Leader (ML) and Single Pitch Award (SPA) holder and he also holds a current outdoor emergency first aid certificate and is a full member of the Mountain Training Association.

Having recently moved to Scotland’s far north to set up King Mountaineering, John is excited to enable others to enjoy the spectacular mountains and vast open spaces that northernmost Scotland has in abundance.