If you can imagine 15 tonnes of gravel suspended a few feet off the ground - with me underneath - that's my life. Everything's as fast as the vegetative growth outside. I can do the calculation for this azimuth - but the legwork's being saved for a large-ish stone circle on Longpot Head. That's the name on the map.
I need a magnetic heading - in degrees - the elevation to the horizon - in degrees up (+) or down (-) - and the latitude and longitude, which I'd get from the OS atlas here. There's a man called Victor that has a declination calculator routine, on a webpage. Could doublecheck my result that way !