Special note about Castle Lake As of August 2013, there is a restriction on overnight camping within one half mile of the lake, except in the Castle Lake Campground. Please be aware that Castle Lake is partially situated on private property. The traditional trail to Heart Lake and Little Castle Lake leaves the east end of the parking area and ascends to the divide above the east side of the lake. It begins on public land in section 24 of T39N R5W but immediately crosses the boundary of section…
Castle Lake is primarily first-come, first-served. Use the availability view to gauge how busy it is before you go.
See the map for Castle Lake's exact location and directions.
Pick your dates on the availability calendar, then reserve through the official booking link. You can also set an alert and we'll notify you if a sold-out date opens up.