In July of 2018, Lifeforce Records released the bands second full length album, titled Passages. This album saw the addition of drummer Patrick Spain.
After the release of Passages, guitarists Isaac Rigler and Forrest Harvey from Oakland doom band Daxma (Blues Funeral Records) joined Mountaineer and the band ended a year-long hiatus from playing live, joining Spotlights for a San Francisco show along with several other live performances in 2019.
The new personnel changes not only gave the band the ability to play live, it brought more songwriters into the fold and the group wrote for several months for what was to become their third full length album, Bloodletting, with Lifeforce Records handling the release once again.
Bloodletting is slated for a May 22nd, 2020 release date and the band is currently planning a tour in July, 2020 in support of the release.