The YNP Mammoth Hot Springs Have, Over the Millennia, Built-Up The Huge Mound of Mineral Deposit Seen Here.
….In This View To The North, You Can See Mammoth Hot Springs Hotel & Restaurant Facility.
…. In the Trees to the Right, Note Red Tile Roofs of the Former Army Fort Yellowstone.
….These Original Fort Buildings Are Now The Headquarter Facilities For YNP Administration and Staff Housing.

…. “Phædrus despised this" [Yellowstone National] park without knowing exactly why...because he hadn’t discovered it himself, perhaps, but probably not. Something else. The guided-tour attitude of the rangers angered him. The Bronx Zoo attitudes of the tourists disgusted him even more. Such a difference from the high country all around. It seemed an enormous museum with exhibits carefully manicured to give the illusion of reality, but nicely chained off so that children would not injure them. People entered the park and became polite and cozy and fakey to each other because the atmosphere of the park made them that way."

NE corner of Mammoth Hot Springs, Intersection US-89, Yellowstone National Park, WY. The /\ Above /\ Photo is shown here, because it so nicely shows the “Chained Off " Fences, and “ Guided Tour " Boardwalks the Narrator complains about here.
….Perhaps, by POETIC ANALOGY, we might conclude that the “The Bronx Zoo attitudes of the tourists”, also happens at some other places in => “ The Philosophy and High Country of the Mind ". Being somewhat sacred territory to Phaedrus, there might also be other places, that were just as much disgusting to the ZMM Narrator?
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Yellowstone National Park History: Original Control By US Army, and Of Course WWI Army Calvary Campaign Hat! =>
….Otherwise Known As The "Smokey Bear Hat"! Remainder of Wikipedia Article, With 33 Photos and 5 Maps. On Photo Shows The Former Army Fort Yellowstone.
….Ongoing poaching and destruction of natural resources continued unabated until the U.S. Army arrived at Mammoth Hot Springs in 1886 and built Camp Sheridan. Over the next 22 years, as the army constructed permanent structures, Camp Sheridan was renamed Fort Yellowstone.[52] On May 7, 1894, the [Daniel] Boone and [Davy] Crockett Club, acting through the personality of George G. Vest, Arnold Hague, William Hallett Phillips, W. A. Wadsworth, Archibald Rogers, Theodore Roosevelt, and George Bird Grinnell were successful in carrying through the Park Protection Act, which saved the park. The Lacey Act of 1900 provided legal support for the officials prosecuting poachers. With the funding and manpower necessary to keep a diligent watch, the army developed their own policies and regulations that permitted public access while protecting park wildlife and natural resources. When the National Park Service was created in 1916, many of the management principles developed by the army were adopted by the new agency.[52] The army turned control over to the National Park Service on October 31, 1918.
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Remainder of Eileen L. Williamson’s Article, With a 1912 Photo Showing 11 US Calvary Men In Ranger Uniform (Each with Smokey Bear Hat) At Old Faithful Geyser.
….The ranger uniform, be it National Park Service, Forest Service or U.S. Army Corps of Engineers, got its start with the First Cavalry’s arrival at Yellowstone in 1886. From 1886-1916, cavalry troops were assigned at several national parks.
When the national park service was formed, many military personnel who had served in the parks accepted discharges from the Army and were appointed as rangers in the Park Service. The men who formed the first civilian ranger service, brought with them the unofficial “ranger” uniform including the signature campaign hat.

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(Photo = 107-0711 ...... ZMM Page = 125 ...... WayPt = 171`|w|' 6445ft)