[5] The town was originally called North Fork, but was renamed Korbel in 1891 with the arrival of the post office.

[2] The Korbel family sold their Mad River properties to the Northern Redwood Lumber Company in 1902.

Simpson operations in Korbel were spun off to sister company Green Diamond Resources.

[6] The mill was sold to Trinity River Timber in 2016; Green Diamond continues to own timberland in the area.

[7] The Old Arrow Tree, California Historical Marker Number 164, is located 0.8 miles East of Korbel.