Apex redwood grows on Harper Flat along Bull Creek. Harper Flat is an area with many tall redwoods and a trail goes right through a portion of this flat. Between 2000 and 2013 the height of Apex increased an average of a little over 5.5 inches per year. It is possible Apex is now over 370 feet tall.
The average diameter of Apex at 4.5 feet above ground level is 11.1 feet.
The latest published measurement for Apex is 368 feet, from 2013 or earlier.
The 2018 LiDAR indicated height for Apex is about 367 feet.
In 2000, when Apex was known as Harper Tower, the published height was 363 feet.