This is about the soft ranked peak 12580 on the Columbine Pass quad.
If I look at the entire list of 12ers (with 300' prominence turned off), then the correct county, La Plata is shown.
If I look at my unclimbed list of 12ers (with 300' prominence turned off), then it shows the peak being in Denali county !??
I tried this with a couple of other peoples unclimbed list, and the same thing happened.