Achagoyle Bay

Achagoyle Bay is coastal embayment, on a chord of 0.75 miles, on a 114° orientation, on the western coast of the longest sea loch in Scotland, Loch Fyne[1] located in Argyll and Bute, on the west coast of Scotland. Achagoyle Bay is directly northwest of Brainport Bay on a NNE orientation, which forms a rightward hook, and opens into the Minard Bay with a NE orientation, also with a rightward hook, directly south. The three bays constitute the western edge of the Minnow Narrows[2][3] which is bounded by the islands An Oitir and Eilean Aoghainn directly to the east of Brainport Bay.

Achagoyle Bay
High Tide on the heritage trail Walking along the edge of Achagoyle Bay from the car park at Minard, the first bridge you come to on the Brainport Heritage Trail.
Achagoyle Bay
LocationMinard
Coordinates56.114044°N 5.253345°W / 56.114044; -5.253345
Typesea loch bay
River sourcesAlltan Tosdach
Auchgoyle Burn
IslandsAn Oitir
Eilean
Aoghainn
Eilean Fraoch
Brideagan

Settlements

The small village of Minard is on the northwest corner of the Achagoyle Bay.

Geography

Achagoyle Bay is dominated by the large hill Beinn Ghlas, one of the Marilyns in southern Scotland, at 420m to the north. Beinn Ghlas forms a ridge that parallels Loch Fyne to the northwest. Most of the area surrounding Achagoyle Bay is heavily forested.

Bronze age feature
Brainport Bay Furnace quarry in the distance

To the south of the bay, on Brainport Bay, lies a Bronze Age structure, that was excavated in the 1970s, and dates to the mid 2nd millennium BC. It achieved notoriety in the 1970s when it was excavated by the local archaeological society, when a curious alignment of artificial structures came to light. It includes a back platform, a flat area around a natural rock outcrop, two large boulders standing on end, known as the observation boulders, with a flat cobbled area between, and a main platform, again artificially enhanced. The main platform appears to have been an extraordinary sighting device. Two slender standing stones, of a height of slightly over 1m tall stood upright in clefts between the rocks. Although they have fallen, these two stones would have lined up, on a notch between two mountains, on the distant horizon from the site, some 30 miles northeast along the loch.[4][5]

During the Bronze Age, the midsummer sunrise would have occurred just a little to the left of the north, crossing the exact alignment, passing just above the north a few minutes later. The stones were designed, such that even in bad weather, a sighting would have still been made, that would appear exactly with the notch, and aligned perfectly.[4]

gollark: I'll put that on the roadmap for next month.
gollark: I mean, we don't have the technology to just magically nanofabricate things with basically no equipment yet.
gollark: How is anarchism meant to allow coordination to the scale that we can have nice shiny modern technology, though?
gollark: ... sure?
gollark: How is *anarchism* meant to work sensibly?

References
  1. "Achagoyle Bay, Argyll and Bute". Ordnance Survey. Ordnance Survey 2018. Retrieved 17 February 2018.
  2. United States. Hydrographic Office (1948). Publications. p. 127.
  3. Stuart Fisher (2012). Rivers of Britain: Estuaries, Tideways, Havens, Lochs, Firths and Kyles. Bloomsbury Publishing. p. 98. ISBN 978-1-4081-5931-6.
  4. Clive L. N. Ruggles (2005). Ancient Astronomy: An Encyclopedia of Cosmologies and Myth. ABC-CLIO. p. 48. ISBN 978-1-85109-477-6.
  5. John Lankford (1997). History of Astronomy: An Encyclopedia. Taylor & Francis. p. 22. ISBN 978-0-8153-0322-0.
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