NRS 243.345: Lake County created—1861.

There shall be a county, to be known as Lake County, to include all that part of the Territory of Nevada within the boundaries described as follows: Beginning at the northwest corner of Washoe County, and running easterly along the northern boundary of Washoe County to the mouth of the Truckee River; thence due east to the summit of the first range of mountains east of the Truckee River; thence in a northerly direction, along the range, and the main granite range of mountains, to the Oregon line; thence west, along the line, to the summit of the Sierra; thence south, along the summit, to the place of beginning.