Ala. Code § 6-6-285
The defendant, within pleading time or within 30 days before the case is called for trial and after notice to the plaintiff or his attorney of record of his purpose so to do, may file his suggestion in writing that the action arises over a disputed boundary line, in which suggestion he shall describe the location of the true line, and the court or jury trying the issue shall ascertain the true location of the boundary line, and judgment shall be entered accordingly, and shall order the sheriff to establish and mark the true line as ascertained; and, in such case, the costs shall be apportioned justly and equitably. A single judgment on such issue of the location of the true boundary line shall bar another action for the location of the same boundary line.
Ala. Code § 6-6-285 (1975)