Map of the Egeria Springs Firehole River between the Upper and Lower Geyser Basins
By: Ferdinand V. Hayden
Date: 1878 (dated) Washington D.C.
Dimensions: 24 x 34.75 inches (60 x 88.25 cm)
This is a scarce and early map of the interior of Yellowstone National Park focusing on the Egeria Springs Firehole River between the Upper and Lower Geyser Basins.
This map shows the Firehole River running north and south was a focus on the Grand Prysmatic Spring. Aside from Old Faithful, the spring is 2nd most popular tourist attraction at Yellowstone National Park. With a diameter of 370 feet and and depth of 121 feet, the thermal spring dazzles with colorful rings of Orange, Yellow and Turquoise around a deep blue center. The map shows how the Grand Prysmatic Spring feeds three other springs at lower elevation, labeled here as 1, 2, and 3, which are today known as Opal Pool, Turquoise Pool, and Excelsior Geyser Crater.
Ferdinand Hayden, known to the Sioux as "man-who-picks-up- stones-running" was one of the most important geologists of the 19th Century. From the 1853 - 1878 he provided the United States government and land speculators with vital information pertaining to the American West as was an instrumental figure in the founding of the world's first national park, Yellowstone. While Hayden first entered the Yellowstone region in 1871, it wasn't until 1878 that he felt his work was complete. It was the later surveys which this map was drawn upon.
Condition: This map is in B condition with prior tape removed and fold separations closed. Minor areas of paper loss have been filled. The map is backed with linen to reinforce the thin and fragile paper it was printed on.
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