One of the most interesting and detailed maps of the region, called by Wheat “a Nevada map of first importance.” (Wheat 1071, illustrated at p. 77). The map was first issued in 1862 (copyrighted 1861). In the first several editions of the map, the Nevada-Utah borders is on the 116th meridian. In one of the 1863 editions, the border is moved to the 115th Meridian. With this edition, the boundary now extends to the 114th meridian, further reducing the size of Utah.
Rumsey notes that this is a superb map, full of interesting and exotic information. The treatment of the Land and Mining Districts in Nevada and California is remarkable, as are the depiction of the roads in Nevada to the mining districts. The map is also one of the earliest maps of California printed in San Francisco.
In this 1867 edition, the title has been revised and Nevada is no longer truncated at the bottom, such that the Potosi District is now in Nevada, whereas in the earliest editions, it was still shown in New Mexico Territory and Arizona. Kern County and Inyo County now appear, having been created from parts of Los Angeles County and Tulare County. Lander County has been pushed to the north and Nye County and Lincoln County are now shown in Nevada,
There is also significantly more detail in Nevada, especially with respect to the rivers and topography in the eastern parts. Many new roads and mining districts are shown in Nevada.
One of the best large format maps of California from the period.