Applications are being accepted for summer seasonal positions.
The application period is open for summer seasonal positions. Please click on the "Employment" link for more information. More »
Nabesna Area ORV Regulations Proposed by Wrangell-St. Elias
A regulation package for the management of off-road vehicle (ORV) use in the Nabesna District of Wrangell-St. Elias National Park & Preserve was published in the Federal register on Jan. 15. It is available for public review and comment for 60 days. More »
HEADQUARTER’S VISITOR CENTER TO REOPEN FOR THE SUMMER
The Wrangell-St. Elias National Park Visitor Center in Copper Center will re-open on April 1, 2014. More »
Wrangell-St. Elias National Park Seeks Candidates for Subsistence Resource Commission
Nominations for candidates to fill upcoming vacancies on the Wrangell-St. Elias National Park Subsistence Resource Commission are being accepted through March 31, 2014. More »
Hearings Set for Hunting and Domestic Goat Restrictions
The National Park Service is holding public hearings in March on temporary restrictions for certain sport hunting practices in several national preserves in Alaska. WRST will also take comments on a proposal to prohibit domestic goats. More »
Permafrost & Forests
Visitors often wonder why the forests in and around the park don't all look the same. Some trees are tall and straight. Others look weak and spindly. The absence and presence of permafrost profoundly influences tree growth in park forests.
Permafrost, or permanently frozen ground, develops when soils remain below freezing for two or more years. Permafrost occurs in many areas of the park, but does not occur beneath large lakes, major streams, and south-facing bluffs.
Permafrost may occur one to ten feet below the surface soil and be 100 to 200 feet thick! In summer, some thawing occurs in the active zone-the upper layer of soil that seasonally thaws. The thickness of this active zone affects the size and survival rate of trees and other plants.
Where permafrost is near the surface, soils are cold, saturated with surface water that cannot drain through the permafrost, and are low in nutrients. The black spruce forests that survive here are slow growing and stunted.
Where permafrost is deep or not present at all, the soils are well drained and deep. They are rich in nutrients and support a rapidly growing mixed-species forest of white spruce, birch, poplar, and quaking aspen.
Did You Know?
At over 13.2 million acres (20,000 square miles), Wrangell-St. Elias is the largest unit in the National Park System