I imagine there have been tons of ice ages similar to last one which ended only... 10k years ago? Where I come from, the mountains were cut pretty deep even fro

I imagine there have been tons of ice ages similar to last one which ended only... 10k years ago? Where I come from, the mountains were cut pretty deep even from this last one which was pretty insignificant on long-term scale. And of course all previous ones left their marks, but the deep scratches were mostly removed by later ones. Maybe its about defining what a news-worthy ice age means. It for sure shouldn't be just snowball Earth type when most of the planet apart from a bit of equatorial places froze solid white.