Altitude: 191m to 450m. Gain: 349m. Loss: 91m . Gradient: 2 deg (Gentle)
The section of the Dusky from West Arm to Upper Spey is the easiest and fastest section of the track - though with a few sections prone to be boggy at times.
Follow the Wilmot Pass Road 3km west from the Wharf, passing West Arm hut after 1km, to where the Dusky Track start is marked by a signpost.
A fairly standard backcountry tramping track runs up the north side of the Spey, generally on river flats with occasional low brief sidles. Maybe 8-10 brief sections are boggy - knee deep when I visited - and others prone to flooding after rain. All major sidecreeks are bridged. The track was well marked and vegetation cut back to a broad width of 1.5-2m when I visited (Dec 2020).
The last 500m to Upper Spey Hut is boardwalked - the fastest 500m on the entire Dusky!
See also: Moir's Ed 7 Pg 139, West Arm to Upper Spey