Greer County, Former county in Texas, United States
Greer County was a county in southwestern Texas that lay between the north and south forks of the Red River. This territory remained under Texas control until a court decision transferred it to a different jurisdiction.
The territory was established by Texas legislation in 1860 and was named after a state official. It remained under Texas control for nearly 4 decades until the U.S. Supreme Court ruled in 1896 that it belonged to Oklahoma Territory instead.
According to the 1890 census, the county population reached 5,336 residents, with Mangum serving as the administrative center.
The location lies at a border between present-day states and is historically known for sitting between two river branches. Those interested in this territorial dispute can explore the region to see the geographic features and landscape that were once contested.
The original boundary dispute stemmed from an inaccurate historical map from 1818 that misplaced a key meridian line along the river. This mapping error created decades of legal confusion before finally being resolved in court.
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