High in the Andes Mountains, dagger-shaped ice spires house thriving microbial communities, offering an oasis for life in one of Earth's harshest environments as well as a possible analogue for life on other planets.
source https://www.lifetechnology.com/blogs/life-technology-news-blog/snow-algae-thrive-in-high-elevation-ice-spires-an-unlikely-oasis-for-life