Fern Lake

Fern Lake
Fern Lake
Fern Lake
LocationRocky Mountain National Park, Larimer County, Colorado, US
Coordinates40°20′12″N 105°40′35″W / 40.33667°N 105.67639°W / 40.33667; -105.67639
Primary outflowsBig Thompson River
Basin countriesUnited States

Fern Lake is an alpine lake in Larimer County, Colorado, United States. It is a major source for the Big Thompson River.