In today's new puzzle we're visiting the Denali National Park in Alaska. In this beautiful image you can see the blue alpine lakes and the green forest under a blue cloudy sky. Denali National Park and Preserve is a national park and preserve located in Interior Alaska, centered on Denali (Mount McKinley), the highest mountain in North America. Glaciers cover about 16% of the 6 million acres of Denali National Park and Preserve. There are more extensive glaciers on the southeastern side of the range because more snow is dropped on this side from the moisture-bearing winds from the Gulf of Alaska. During the very cold Pleistocene climates, all of Denali was solidly frozen. In the northern areas of the range, it is very much still frozen due to continued cold temperatures. Permanently frozen ground is known as permafrost. Vegetation in the park depends on the altitude. The treeline is at 2,500 feet (760 m), causing most of the park to be a vast expanse of tundra. There are three types of forest in the park: from lowest to highest, they are low brush bog, bottomland spruce-poplar forest, upland spruce-hardwood forest. Over 450 species of flowering plants fill the park and can be viewed in bloom throughout summer.