Fern Lake is an alpine lake in Larimer County, Colorado, United States. It is a major source for the Big Thompson River.
These pages get richer when visitors contribute. Drop a photo, log a trip, save the spot, or send a correction — every addition makes the next visitor’s page better.
Sunrise on the dock, a fish on the line, a sunset that ought to be shared. Your camera roll, our archive.
+ Add photos →Bug pressure. Water level. Trail conditions. The kind of detail that helps the next person plan.
Write a report →Build a list of waters to fish, peaks to climb, towns to circle back to. One click.
Save lake →Wrong species. Outdated access notes. A coordinate on the wrong water. We’d rather hear it than miss it.
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What to do, where to stay, and what's reopening across the Park as the snow melts and the calendar fills.
A complete planning guide: difficulty by peak, common combo days, seasonal realities, and a sortable, filterable table of every summit.
Camps, cabins, and lakefront — what to know about Park-region real estate, financing a second home, taxes and STAR, lakefront vs. mountain vs. in-town, and the surprises a generalist agent won't flag.
