I ran longlines for mink for a number of years during the 1980s and '90s. Fur prices were good and my work schedule was flexible enough to allow it. A large trapline was something that I could operate around my regular job responsibilities without being required to take vacation, which at the time, I had very little of to use. It evolved from catching a few mink one season to catching even more the next year. Then it dawned on me one day that there must be a sizable population of mink in the area that I was trapping. Maybe I could trap even more.
The first thing that I did was pull out the maps. Adjacent county maps showed three rivers draining into three flood-control/water-supply reservoirs. Each of those three rivers had fingers