This cache is being placed for the end of year special Souvenirs - last day of 2019 (Dec 31) and first day of 2020 (Jan 1).
As you travel West Bound towards Marathon you will encounter a large sign advertising the town of Marathon. The sign is located on the north side of the Highway 17 just west of an old burnt out gas station.
The micro to small sized cache will be an easy find. The hint is in the title
In winter the terrain will be more like 3.0-3.5 with the snow and having to use snow shoes