Frosty weekend, temps down around -25 or so when starting out at daybreak...sled having sat in similar temps all week started up well with a slight grunt....isopropyl gas line antifreeze helped out there a bit....(only NAPA carrying the isopropyl these days?) and off I go...     First time in this area, ITG not working, so stick to main trails for the morning, and explored a few access trails around the city....       Later discover varied sce