In 2015, Mountaineer released its debut album '1974'. In January 2022, the band released 'Lewis & Clark', recorded by Jan Schenk (Claw Boys Claw, Awkward I) and mixed by Frans Hagenaars (Daryll-Ann, Tim Knol).

At the end of 2024, Mountaineer will start recording the new album, which is to be released in spring 2025.