Loop in the continental divide Various maps of the Continental Divide (the hydrological  feature, not the trail) contain a loop that looks like this:



What is the hydrologic meaning of the loop in Wyoming? 

Even if it's a basin, it must have at least a theoretical outlet from which a high enough water level would flow. 

Or does the definition of the divide treat this as having no outlet, and hence in neither the Atlantic or Pacific watersheds?
No water flows out of it, apparently...

https://www.onlyinyourstate.com/wyoming/continental-divide-basin-wy/

In summary, there used to be a big lake there, now its a basin with no flows into either ocean. Water there seems to be self contained, accumulating from rainfall and removed by evaporation.