By the mid-1980s, it was no longer turning a profit. The mines were closed and the town fully dismantled in 1985. All buildings and nearly all of the streets were dismantled. The town's main street remained and is now part of Route 389. That section of highway retains a boulevard configuration, complete with a median, sidewalks, and sewers, despite being deep in the wilderness, hundreds of kilometres from the nearest active community.

External links

• Site with pictures of Gagnon when it was active
• Gagnon virtual tour on Trans-Labrador Highway site.
• Site with photos of Gagnon as it looked in 1962 - 1963