[echelon]

All fascinating information, many thanks for the responses. Do I interpret the comment above, correctly, that there is a Facebook instance of this forum, which would allow the viewing of an 8MB file?

I'll post soon regarding the somewhat-mysterious remnant telegraph poles visible along part of the Glenogle viaduct railway route, now part of the Rob Roy Way cycle path. In essence, the height/wood stock both appear to be much smaller/lighter than I'd've expected from the golden age of steam, especially in an inhospitible, high and exposed part of the world. I think I took some pictures (without scale references, though), shall try and sort that