a frostcovered fortress etched into the side of a glacial mountain

frostcovere fortress etch side glacial mountain frost cold castle snow barren hermitage white fortify frigid tower winter history iceberg glacier wall territory guard defense rocky outpost craggy avalanche remote desolate stronghold icy guardian ancient blizzard abandon permafrost frozen gateway arctic structure gloomy highland tundra palace cavern snowy majestic isolate frosty