C.R.S. § 35-46-114: Fence may be removed - when.

When any person unwittingly, or by mistake, erects a fence upon the land of another and when, by a line legally determined, that fact is ascertained, such person may enter upon such premises and remove such fence at any time within one year after giving or receiving notice that the line has been run; but when the fence to be removed forms any part of a fence enclosing a field of the other party, having a crop thereon, such first person shall not remove such fence until such crop can, with reasonable diligence, be gathered and secured.