Park Season

Although the park is officially open to travel all year, the summer—June through September—is the "regular" season. From October until May high altitude roads are blocked by snow. Most of the park trails are also snow-blocked in winter. The park museum is closed, and naturalist hikes and other activities are not scheduled after September 15. Camping is difficult from September to May because of adverse weather and limited facilities. However, the roads to both Estes Park and Grand Lake are usually open throughout the winter, and satisfactory accommodations are available in both gateway towns during the off-season.