I never heard of these Continental Divides before other than the Great one. I was surprised to be near the St Lawrence one and cross it frequently. However, I question why the northern border of it is incorrect.
Cottonwood Pass on the Continental Divide, Rocky Mountains, Colorado. Elevation 12,126ft.Looking across to Jones Mountain. Elevation 13,218ft Jeff Kudla
A pic of the conventional idea of the Continental Divide.