In reply to malky_c:
> There is now a hydro scheme in there that might not be on the satellite images. Not sure if this makes the path better or worse - probably better up to the top weir (which is still some way short of the Bealach Dubh).
The new track/path up to the top weir is really only a shortish part of the way. Beyond here it gradually deteriorates and winds along the river, effectively becoming pathless a bit before you cut up right to join the excellent path from Ben alder Cottage. Could involve a tricky river crossing or needing to continue pathless further towards the Bealach after heavy rain