The topographic maps of the United States" and key to standard symbols on verso., Relief shown by contours and spot heights., Surveyed in 1891., This map made from surveys without spirit level control.,
"The topographic maps of the United States" and key to standard symbols on verso., Relief shown by contours and spot heights., Reconnaissance map., Surveyed in 1891.,
Description of the topographic map of the United States" and key to standard symbols on verso., Relief shown by contours and spot heights., Reconnaissance map., Surveyed in 1891.,
Description of the topographic map of the United States" and key to standard symbols on verso., Relief shown by contours and spot heights., Topographic sheet., Surveyed in 1892-3,