@northernlens.canada: This lake remembers our past. 🌎🇨🇦 Crawford Lake in Ontario holds thousands of years of environmental history in its sediment layers. Scientists even found evidence linked to nuclear weapons testing. Would you have guessed a lake could tell us this much about humanity? 👀 Follow Northern Lens Canada for more incredible stories from Canada. 🇨🇦 #CrawfordLake #Ontario #Canada #CanadaFacts #CanadianHistory

sass🇨🇦 :

named after Isabella Valancy Crawford?- my great great aunt

Rocket 🚀 Fuel MDM 🌟 :

I have taken my students there. very interesting process and scientific story.

Shaedria 🇨🇦 :

That’s so cool

stewartmatthews75 :

I have a great secret story from there but it will be there for ever

DM🇨🇦 :

I like this👍

Shawn Nova 🇨🇦 ✝️ :

Ahmed :

🥰🥰🥰