“The road conditions near the jetty were highly variable, which was to say not always roads. The lake’s water levels, too, needed to be below 4,195 feet for us to see it, and those levels were partly dependent on snowfall (this winter there was lots) and how much of that snow, by the time we arrived, had melted and sluiced down the mountains — water that also, en route to the lake, could turn the 16 miles of unpaved roads into impassable mush.”