More than 100 scientists, foresters, arborists, nature lovers and tree advocates from numerous states were at McCook Community College Thursday and Friday as part of the 2019 Burr Oak Canyon Tree Symposium.
Conference sessions included a variety of issues related to tree care as well as a BBQ and social at Common Scents Nursery and highlighted by a tour Friday of the relict stand of trees in nearby Burr Oak Canyon.
Some scientists believe this "hidden" pocket of some 800 bur oak trees survived the ice age and could have been established 9,000 years ago. One of the trees with a 22-inch trunk was determined to be 150 years old and some of the trees with 40-inch trunks could be as old as 200 years old.
Part of Friday's field trip included a study and observations of what could be a rare lone gambel oak tree.
Thursday's schedule included a bur oak tree-planting ceremony in Kelley Park.