"The mountain is out!"
Besides the incredible beauty and mystique surrounding this mountain, it's also fascinating to consider its geological history and the fact that the mountain is continuing to change. Mt McKinley is considered a granitic pluton, a mass of magma or lava that cooled and hardened beneath the earth's surface. Over tens of millions of years the mountain was up lifted by tectonic pressures imposed by the collision between the Pacific plate and the North American plate, large segments of the earth's crust that shift and overlap over time in a process called subduction. These pressures formed the mountain and surrounding range and continue to influence them.
Earthquakes occur along the Denali Fault line, which runs through the park and the Alaska Range, and glaciers advance and retreat making this mountain and its surrounding valley alive with change and movement. In fact, geologists report that Mt McKinley continues to grow taller by 1 millimeter each year.
Up Coming: More about Mt McKinley and its glaciers, Wonder Lake, and Wildlife Encounters
Links and Resources:
Click this link to view all my posts on Denali National Park and Preserve. To see all posts on my visit to Alaska in the fall of 2012, visit Alaska
Mt McKinley's geological history
Ecological Overview of Denali National Park and Preserve
Geological Features of Mt McKinley
Wiki on Mount McKinley
Mountaineering in Denali, current climbing activity
Glaciers in Denali National Park
For the Love of It...
...the sage sees heaven reflected in Nature as in a mirror, and he pursues this Art, not for the sake of gold or silver, but for the love of the knowledge which it reveals.