From Higher Up: Another View Of More Mineral Deposits.
….Again, Note the Curved Grey Line Just Above the Buildings Center.
…..This Is US-89 Road Going North Out of the Park’s Northwest Gate:
…….As You Will See, This Road Follows The Valley of The Gardner River All The Way To Gardener, MT.

….[ “People entered the park and became polite and cozy and fakey to each other because the atmosphere of the park made them that way. ….. In the entire time he had lived within a hundred miles of it he had visited it only once or twice.]

NE corner of Mammoth Hot Springs, Intersection US-89, Yellowstone National Park, WY. What the Narrator says is indeed true of fellow tourists: For example at these Hot Springs => I found myself “striking up conversations” with many different people, and even talking to and helping children!
….In a very memorable example => One geology knowledgeable man, seeing me take so many pictures, decided I was interested in learning more. He took the time to explain the geography and geology of the larger Yellowstone National Park:
….He explained just how YNP is essentially a giant volcanic “caldera”, or “basin”: that had “sunk down’ in the center of the surrounding high mountains. This formed a high ring of mountains all around a considerably lower park. He showed me from a high board walkway like this one (In /\ Above Photo), how to look at the most distant mountains to the North, to actually see this was true! (In /\ Above Photo, and several previous, these mountains are seen in the distance.)

Continued From 6th Previous Photo
…. Here Is A Longer "Yellowstone Caldera" Excerpt From Same Wikipedia Page =>
….Volcanism at Yellowstone is relatively recent, with calderas that were created during large eruptions that took place 2.1 million, 1.3 million, and 630,000 years ago. The calderas lie over the Yellowstone hotspot under the Yellowstone Plateau where light and hot magma (molten rock) from the mantle rises toward the surface. The hotspot appears to move across terrain in the east-northeast direction, and is responsible for the eastern half of Idaho's Snake River Plain, but in fact the hotspot is much deeper than terrain and remains stationary while the North American Plate moves west-southwest over it.
….Over the past 18 million years or so, this hotspot has generated a succession of explosive eruptions and less violent floods of basaltic lava. Together these eruptions have helped create the eastern part of the Snake River Plain (to the west of Yellowstone) from a once-mountainous region. At least a dozen of these eruptions were so massive that they are classified as supereruptions. Volcanic eruptions sometimes empty their stores of magma so swiftly that the overlying land collapses into the emptied magma chamber, forming a geographic depression called a caldera.
The oldest identified caldera remnant straddles the border near McDermitt, Nevada–Oregon, although there are volcaniclastic piles and arcuate faults that define caldera complexes more than 60 km (37 mi) in diameter in the Carmacks Group of southwest-central Yukon, Canada, which are interpreted to have been formed 70 million years ago by the Yellowstone hotspot.[7][8] Progressively younger caldera remnants, most grouped in several overlapping volcanic fields, extend from the Nevada–Oregon border through the eastern Snake River Plain and terminate in the Yellowstone Plateau. One such caldera, the Bruneau-Jarbidge caldera in southern Idaho, was formed between 10 and 12 million years ago, and the event dropped ash to a depth of one foot (30 cm) 1,000 miles (1,600 km) away in northeastern Nebraska and killed large herds of rhinoceros, camel, and other animals at Ashfall Fossil Beds State Historical Park. The United States Geological Survey (USGS) estimates there are one or two major caldera-forming eruptions and a hundred or so lava extruding eruptions per million years, and "several to many" steam eruptions per century.
….The loosely defined term "supervolcano" has been used to describe volcanic fields that produce exceptionally large volcanic eruptions. Thus defined, the Yellowstone Supervolcano is the volcanic field that produced the latest three supereruptions from the Yellowstone hotspot; it also produced one additional smaller eruption, thereby creating the West Thumb of Yellowstone Lake[10] 174,000 years ago. The three supereruptions occurred 2.1 million, 1.3 million, and approximately 630,000 years ago,
….. Click Here To Continue Reading Wikipedia "Yellowstone Caldera".

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(Photo = 107-0709 ...... ZMM Page = 125 ...... WayPt = 170`|w|' 6449ft)