[6] During the railway construction, Foley, Welch and Stewart was a prime contractor, and Pete Larson was a subcontractor.

Much of this activity was along the east-west Sheep Creek, which flows into the Salmo River about 6 kilometres (3.7 mi) to the south.

Notable ones were the HB about 7 kilometres (4.3 mi) southeast of Salmo, and the Emerald, a few miles farther south.

Blackburn acquired expired claims, and rising lead and zinc prices triggered increasing activity.

Acquired by the federally owned Wartime Metals Corporation in 1942, a new mill and substation were constructed, but only operated for six weeks before being shut down.

Canex restarted production in 1947, expanded to zinc and lead in 1949, and added neighbouring mines and increased capacity in 1951.

[9] On the northwest side of the highway downtown, the former N&SF combination station/freight shed (a designated heritage building) stands on the Salmo-Troup Rail Trail.

This building dates from 1913,[10] a replacement after the Great Northern Railway (GN) relocated the original to Northport, Washington, over a dispute with the local council.

[9] On the southeast side of the highway, the ornate two-storied wooden Salmo Hotel (1912) occupies a corner lot.

Salmo was featured on the historical television documentary series Gold Trails and Ghost Towns (season 3, episode 1).

It began broadcasting as a developmental Community Radio Station on October 11, 2008 at 92.1 FM in Salmo, British Columbia.