The Nevada County Historical Landmarks Commission is delighted to announce that the site and remains of the 1870s Mount Lola Geodetic Survey was designated as Nevada County Historical Landmark NEV 25-07 on August 12, 2025 by the County Board of Supervisors at its Truckee meeting.

The landmark will commemorate work done in the 1870s by Prof. George Davidson and his team from the United States Coast and Geodetic Survey. They developed quadrilateral base line measurements which served as the primary triangulation method for surveying and mapping the West Coast of the United States until the advent of GPS satellite navigation in the 1980s. Prof. Davidson worked from atop Mount Lola where evidence of his work remains. The mountain is named for the legendary Lola Montez, who lived in Nevada Cou

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