Thank you Manfred. The first archived spots I see on DXFuncluster for NPOTA RS01 (KFF-0664) are from March 2016 and after, which sounds reasonable for snowy Idaho. I worked 8 unique NPOTAs that day so figuring out the correct reference from spots is not likely. The only way to solve this mystery may be to contact one of the ops in the log and ask who they worked. 🙂
73
Jim
NU0C