Can create minority enclaves. Divides pluralistic societies. Unites ecosystems and habitats. Can create inefficient narrow strips. Iceland Argentina Sudan Turkey Texas Montana Not yet widespread.
Some boundaries combine theories.
Because locus boundaries are usually mapped with reference to distant monument points, they are difficult to survey on the ground. Some are later moved slightly to coincide with low-level survey boundaries. The boundary was established at a given distance from Glendive, then slightly altered to follow rectangular section lines. They can form barriers to transportation, minimizing trade, communication, and migration between communities on opposite sides. Swiss cantons Switzerland allows its administrative units to organize around existing communities.