First Battle of Pyramid Lake
1860 CE.
Shown on the map at 39.830°, -119.360°.
The First Battle of Pyramid Lake in 1860 was one of the opening conflicts of the Paiute War in Nevada between the American people and the Paiute people, who had resisted the increasing numbers of migrants who traveled the California Trail through their territory, taking scarce game and water resources, as well as altercations with the Pony Express.
Text from the Wikipedia article First Battle of Pyramid Lake, licensed CC BY-SA 4.0.