Pioneer Cabin Tree

The Pioneer Cabin Tree, also known as The Tunnel Tree, was a giant sequoia in Calaveras Big Trees State Park, California. It was considered one of the U.S.'s most famous trees, and drew thousands of visitors annually.
It was estimated to have been more than 1,000 years old, and measured in diameter; its exact age and height were not known.
The tree was topped before 1859. It fell and shattered during a storm on January 8, 2017.
History.
The Pioneer Cabin Tree got its name from its distinctively hollow trunk, partially burnt by lightning strikes and forest fire.
It had small compartments as in a log cabin, with the tree's burnt core as a chimney, and a small opening as a backdoor.
In 1857 it was noted that the "top half" of the tree was broken off at about 150 feet, and that the tree was hollow.
In the early 1880s,
a tunnel was cut through the compartments by a private land owner at the request of James Sperry, founder of the Murphys Hotel, so that tourists could pass through it.
The tree was chosen in part because of the large forest fire scar. The Pioneer Cabin Tree emulated the tunnel carved into Yosemite's Wawona Tree, and was intended to compete with it for tourists.
Since the 1880s and for more than 50 years, visitor graffiti was encouraged, but this practice was prohibited in the 1930s. At first only pedestrians were allowed to pass through the tree.
Later, for many years, automobiles drove through it as part of the "Big Trees Trail". It was one of several drive-through trees in California.
Subsequently, only hikers were allowed to pass through the tree's tunnel as part of the North Grove Loop hiking trail.
Fall.
The Pioneer Cabin Tree fell during a rain storm and flooding on January 8, 2017. It was the strongest storm to hit the area in over a decade. The flooding, combined with the shallow root system of giant sequoias, likely caused it to fall. A park volunteer reported that the tree had been weakening, becoming brittle and leaning to one side for several years, with only a single branch remaining alive. It had been weakened by the severe damage caused by the tunnel carved through its trunk. The tree shattered on impact with the ground.
After the fall of the tree the park trail closed for a cleanup operation. Some sections of the tree remained intact, but the park's preservation policy prevented them from being cut up, for example to determine the tree's exact age.
At least one observer suggested that the tree fell victim to the profit motive and greed, not just a storm. It was one of several trees that were mutilated to promote tourism. California State Parks supervising ranger Tony Tealdi said that today the hollowing out of a tree would not be permitted.
Drive-through and other noted trees.
This was one of several trees that were hollowed out for the amusement of tourists.
The two giant sequoia drive-through trees have both fallen:
Two walk-through giant sequoia tunnel trees still stand:
Two others have edifices carved within:
Tunnel Log is a fallen giant sequoia tree in Sequoia National Park. The tree, which measured 275 feet (84 m) tall and 21 feet (6.4 m) in diameter, fell across a park road in 1937 due to natural causes. The following year, a crew cut an 8-foot (2.4 m) tall, 17-foot (5.2 m) wide tunnel through the trunk, making the road passable again.
There are three coast redwood trees that can be driven through near US 101 in northern California, namely: Klamath Tour Thru Tree; Shrine Drive-Thru Tree; and Chandelier Tree.
The loss of the Pioneer Cabin Tree occasioned an encomium to other important trees that still remain.