Alolan Geodude have long seen use on construction sites in their native region, because their small bodies and round shapes allow them to reach places which human workers and local fighting pokemon could not, their electricity allowed crews to work overnight before the advent of artificial lighting, and their magnetism allowed them to shape metal in a way not equaled by their more grounded international counterparts. Although Johto's Geodude population was already so high that one could not walk through its caves without tripping on twenty or so, the region's Emperor was so intrigued by the prospect of using the Alolan forms to build monuments that he imported a whole ship's worth as construction workers.
The Alolan Geodude present in Johto were indeed capable workers, but their habit of headbutting one another (and occasionally, an unwitting human as well) could not be broken by any managerial technique, and produced a unique challenge in Johto's densely forested environment. Not only did some headbutts miss the intended target and connect directly with the base of one of Johto's many trees, but the impact from one could knock another backwards, startling arboreal pokemon as surely as if the Geodude had targeted the tree itself. Whatever gains in efficiency the use of Geodude offered, alas, were more than made up for by the swarms of Beedrill or Heracross they provoked, which forced human and pokemon workers alike to flee.
Although this first experiment with international Alolan Geodude construction failed miserably, Alolan Geodude can be seen in Johto even today, most commonly when swinging along and repairing telephone lines after storms. This usage, which began when an embarrassed emperor sought for his expensive Geodude a project bugs could not disrupt, is today seen around the world wherever wires are strung – even in Alola itself!