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'The Inchbae Intrusion'


Sounds like a bad thriller, jets screaming overhead, somewhere in Scotland, someone on the run across the heather, pursued by guns and dogs, hiding behind boulders...

Ian Taylor had seen them as well, glacial drift and erratics all over the place, in dumpy moraine hillocks and drumlins. Once or twice I almost ended up in Black Bridge craning my neck out the side-window. Then one day I stopped, put the wellies on and went to satisfy the rock-thirst again.

Situated between Garve and Ullapool, these boulders are mostly hidden from view, but a litter of small ones by 'Lubfearn' (the alder loop), under the choked throat of Altguish, were recently attended to by myself and Ian Taylor. Here's what Ian found as description for the area:

'originally a porphyritic granite with abundant orthoclase phenocrysts, but is now a coarse biotite-granite gneiss in which the phenocrysts are largely deformed to augen wrapped round by a steaked out matrix of quartz, biotite, potash felspar and plagioclase'


A code by the sounds of it! The rock is indeed a heady mixture of crystals and codes, teasing body positions and curious resolutions.

A circuit of about twenty good problems now exists, with more chapters to be written...

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