Holy smokes, I am so confused right now.
I found another little side road spot I remember stopping at and it aligns perfectly. I am marking this spot, thank you so much for this. I REALLY wanna go back to swim there this summer!

https://www.google.com/maps/@51.9693742,-116.7178511,3a,55.5y,6.65h,96.23t/data=!3m6!1e1!3m4!1syvwOwxlm8MZmheMztCu7_w!2e0!7i16384!8i8192!5m1!1e4

Edit: u/wpnw helped me to find the exact spot I was, thanks a million! The whole road is stunning, no matter where you stop. Its all equally amazing.

Its my favourite photo from last summer's roadtrip to the rockies, also one of my favourite places on earth. Hoping to go back this summer for camping and hiking some of the peaks.