Anybody know of any good quarry spots in Ontario? Most I've seen are often in use

I've been looking, and I do know of one. It's quite a challenge but I'll be looking for new places. It's best to go on Sundays, I believe all quarries are closed that day.

I"d be up for learning about them. I am hoping to do a TO visit this summer....

Jus sayin'.

I know of a couple in the GTA. I've only been to one and didn't have much luck, based on Google maps their best mud spots were very close to the main buildings which were lit up with lights so I didn't want to get too close. Found a spot further away on the outskirts of the quarry that was about waist deep. Still on the hunt for some better spots though!