Arbor Day

  1. Clear Creek Trail has fully re-opened!

    After three portions of the trail were closed for work part of the Clear Creek Trail Replacement Project, the Department is excited to re-open the trail leaving a safer, more travel friendly trail for visitors. Read on...
View All

About Arbor Day

Arbor Day is an annual observance that celebrates the role of trees in our lives and promotes tree planting and care. As a formal holiday, it was first observed in 1872, in Nebraska, but tree planting festivals are as old as civilization.

For more info visit the Arbor Day Foundation website.


National Arbor Day is always celebrated on the last Friday in April, however Colorado observes Arbor Day on the third Friday in April.

  1. 1
  2. 2