The Teklanika River is a feeder stream to the Yukon River drainage and a tributary of the Nenana River in the central interior region of Alaska. Flowing northward from headwaters at the Cantwell Glacier in the Alaska Range and reaching 111 miles (179 km) to the Tanana River, it drains an area widely visited by tourists to Denali National Park and Preserve. The park's only road crosses the river at milepost 31 and a National Park campground is located on its eastern bank at milepost 29.
On its course, the river travels north from the core Alaska Range as a braided river, becoming rapid and narrow as it traverses through the Primrose Ridge, braiding again through the Stampede Trail valley, narrowing again through the Tekla Ridge before ultimately meandering through a complex series of oxbow turns and lakes across the southern Tanana River valley.
The river is crossed by the Denali Park Road and the Stampede Trail, and was heavily prospected in the early 20th century for the many coal, gold and platinum deposits found along its banks.
The name derives from Athabascan Indian words which roughly translate as "glacier stream."
In the book Into the Wild, the Teklanika River is referred to as the Rubicon for American adventurer Christopher McCandless. Since then, the Teklanika River has proven an obstacle to many hikers attempting to reach the bus where Christopher McCandless lived and died. In August 2010, Swiss hiker, Claire Ackermann drowned in an attempt to cross during unusually high water levels.[1]