Tunnel tree

This practice was primarily carried out in the late 19th and early 20th centuries in the western United States, particularly in California.

[1] The creation of tunnel trees was intended to boost tourism, making the sites iconic landmarks.

[2] However, the practice of boring tunnels into living trees caused significant harm to their structural integrity and overall health.

[1] As awareness of nature conservation increased, the practice was discontinued.

[1] Today, tunnel trees serve as reminders of an earlier era in American tourism and as examples of the evolving understanding of the importance of conservation and tree preservation.