Thousand Mile Tree

Thousand Mile Tree is a pine tree located in Weber Canyon near the community of Henefer, along the Overland Route of the Union Pacific Railroad. In January 1869, graders of the railroad found a similar tree standing next to the line they were constructing, which by coincidence marked the western progress of exactly one thousand miles of road from the eastern terminus of the First Transcontinental Railroad. By 1900, the original Thousand Mile Tree had died and it was removed in September of that year. In 1982, Union Pacific planted a new tree to commemorate the site. The tree stands today within a special fenced enclosure along the original transcontinental line, where it has grown to over 30 feet tall.
-from Wikipedia