The limnology of Jackson Lake has been studied very little, despite the fact that it is the uppermost large lake on the headwaters of the Snake River, one of the larger rivers in the country (Hayden 1969). It is also an important fishery, largely for introduced lake trout. In 2014 we took our incoming graduate students to the Jackson Hole and one part of this introductory course focused on the limnology of the lake. Prior to the arrival of the students, a nutrient addition bioassay was initiated to demonstrate an experimental approach to understanding what nutrients might control production processes of phytoplankton at the base of the plankton food web. Additionally, students did vertical profiling of temperature, oxygen and light in the pelagic zone, and measured the Secchi disk transparency of the lake water.