The length of the main stream is . Its source is the Colzium Springs in the
Pentland Hills. The river travels through
Harperrig Reservoir, past the ruins of
Cairns Castle, on to
Balerno,
Currie,
Juniper Green,
Colinton,
Slateford,
Longstone,
Saughton,
Balgreen,
Roseburn and
West Coates. The river nears Edinburgh city centre between
West End and
Dean Village; the site of old
watermills in a deep gorge. The
ravine is dramatically spanned by the
Dean Bridge, designed by
Thomas Telford and built in 1832 for the road to
Queensferry. area, with
Comely Bank opposite The river flows on past
Stockbridge,
Inverleith,
Canonmills and
Warriston where it passes through shallows at a place known as Puddocky which is commonly thought to refer to "puddocks", the
Scots language term for frogs, but actually took its name from the former Paddock Hall sited nearby. The river continues past
Bonnington, the site of another watermill, to
Leith where it widens into the old harbour and
Port of Leith at the
Shore. Leith Docks have been extended considerably out into the
firth from the old shoreline. == Water of Leith Walkway ==