Lawrence County is bounded as beginning at the southwest corner of township five, north, range ten, east, thence east along the line separating townships four and five to the northeast corner of section five, township four, north, range eleven, east; thence south with the east boundary line of section five to the northeast corner of the southeast quarter of said section five; thence east along the half section line of section four to the northeast corner of the southeast quarter of said section four; thence south with the east boundary of section four to the southeast corner of said section four; thence east along the south boundary line of section three to the southeast corner of the southwest quarter of said section three; thence south along the half section line of section ten to the center of section ten; thence east along the half section line of sections ten, eleven and twelve to the southeast corner of the southwest quarter of the northwest quarter of said section twelve, township four, north, range eleven, east; thence north along the east boundary of the southwest quarter of the northwest quarter of section twelve to the northeast corner of the southwest quarter of the northwest quarter of said section; thence east along the south boundary line of the northeast quarter of the northwest quarter of section twelve to the southeast corner of the northeast quarter of the northwest quarter of section twelve; thence north along the half section line of section twelve to the northeast corner of the northwest quarter of section twelve; thence east along the north boundary line of section twelve to the northeast corner of said section twelve and until it intersects the line between ranges eleven and twelve, east; thence north along the said range line to the southwest corner of section eighteen, township five, north, range twelve east; thence east with the section lines to the Pearl River; thence up said river with its meanderings to where the the line between sections thirteen and twenty-four in township five, north range twenty, west, intersects said river; thence east to the range line between ranges nineteen and twenty, west; thence north along said range line to the township line between townships six and seven; thence west along the township line between township six and seven one mile to the southwest corner of section thirty-six in township seven, range twenty, west; thence north along section lines to the Old Choctaw boundary line; thence westwardly along the Old Choctaw boundary line to the point where the same is intersected by the range line between ranges nine and ten, east; thence south on said range line to the place of beginning. The county site is Monticello.