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Binoculars & Spotting Scopes
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<blockquote data-quote="Troubador" data-source="post: 3678360" data-attributes="member: 109211"><p>Hi David</p><p>According to internet sources at sea level the distance to the horizon is about 3 miles, on top of a hill 100ft high its about 12 miles. But we can see the coast of Ireland from The Oa on Islay at sea level and that is about 25 miles. Still, I would have thought 60 miles would need viewing from a fair altitude.</p><p></p><p>Lee</p></blockquote><p></p>
[QUOTE="Troubador, post: 3678360, member: 109211"] Hi David According to internet sources at sea level the distance to the horizon is about 3 miles, on top of a hill 100ft high its about 12 miles. But we can see the coast of Ireland from The Oa on Islay at sea level and that is about 25 miles. Still, I would have thought 60 miles would need viewing from a fair altitude. Lee [/QUOTE]
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Binoculars & Spotting Scopes
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