Idaho Code § 31-107
Benewah county is described as follows: beginning at the point of intersection of the Idaho-Washington state line with the north boundary line of township forty-six (46) north;
Western boundary. Thence south along said state line to the point of intersection of said state line with the north boundary line of the county of Latah, as now constituted;
Southern boundary. Thence in a southeasterly and easterly direction along said north boundary line of the county of Latah to the northeast corner of section four (4), township forty-two (42) north, range one (1) east, being the northeast corner of Latah county with Benewah county to the north and Shoshone county to the east;
Thence east along the township line, approximately 15.50 chains (1,023 feet) to the west sixteenth corner of section thirty-four (34), township forty-three (43) north, range one (1) east, being the southeast corner of Benewah county with Shoshone county to the east and south;
Eastern boundary. Thence north along the western boundary of Shoshone county to the northeast corner section twenty-one (21), township forty-seven (47) north, range one (1) east, being the northeast corner of Benewah county with Kootenai county to the north and Shoshone county to the east;
Northern boundary. Thence west along the north boundary line of sections twenty-one (21), twenty (20) and nineteen (19), township forty-seven (47) north, range one (1) east, to the point of intersection with the Boise meridian; thence along said Boise meridian to the northeast corner of section twenty-four (24), township forty-seven (47) north, range one (1) west; thence west along the north boundary line of sections twenty-four (24), twenty-three (23), twenty-two (22), twenty-one (21), twenty (20) and nineteen (19), township forty-seven (47) north, range one (1) west, to the range line between township forty-seven (47) north, range one (1) west, and township forty-seven (47) north, range two (2) west; thence along said last-mentioned range line to the northeast corner of section twenty-four (24), township forty-seven (47) north, range two (2) west; thence continuing west along the north boundary lines of sections twenty-four (24), twenty-three (23), twenty-two (22), to the northwest corner of section twenty-two (22), township forty-seven (47) north, range two (2) west; thence south along the west line of section twenty-two (22), township forty-seven (47) north, range two (2) west, to the northwest corner of section twenty-seven (27), township forty-seven (47) north, range two (2) west; thence west along the north line of sections twenty-eight (28) and twenty-nine (29), township forty-seven (47) north, range two (2) west, to the northwest corner of section twenty-nine (29), township forty-seven (47) north, range two (2) west; thence south along the west line of sections twenty-nine (29) and thirty-two (32), township forty-seven (47) north, range two (2) west, to the southwest corner of section thirty-two (32), township forty-seven (47) north, range two (2) west; thence west along the township line between townships forty-six (46) and forty-seven (47) north, range two (2) west, to the intersection of the range line between ranges two (2) and three (3) west; thence continuing west along the township line between townships forty-six (46) and forty-seven (47) north, range three (3) west, to the southwest corner of section thirty-three (33), township forty-seven (47) north, range three (3) west; thence north along the west line of section thirty-three (33), township forty-seven (47) north, range three (3) west, to the northwest corner of section thirty-three (33), township forty-seven (47) north, range three (3) west; thence west along the north line of sections thirty-two (32) and thirty-one (31), township forty-seven (47) north, range three (3) west, to the range line between ranges three (3) and four (4) west; thence south along the said range line to the northeast corner of section thirty-six (36), township forty-seven (47) north, range four (4) west; thence west along the north line of sections thirty-six (36) and thirty-five (35), township forty-seven (47) north, range four (4) west, to the northwest corner of section thirty-five (35), township forty-seven (47) north, range four (4) west; thence south along the west line of said section thirty-five (35), township forty-seven (47) north, range four (4) west, to the southwest corner of said section thirty-five (35), township forty-seven (47) north, range four (4) west; thence west along the north line of township forty-six (46) north, ranges four (4), five (5), and six (6) west, to the point of beginning.
County seat-St. Maries.
Idaho Code § 31-107