Road West From Bozeman.
….The Narrator Takes Up His Discovery of the Most Outstanding Mathematician AND Man of Science Of His Time => Jules Henri Poincaré.

[After the Narrator’s long study in preparation for this Chautauqua:]
…."Eventually I came to Poincaré. Here again there was little duplication “ [of Phaedrus’ ideas] “ but another kind of phenomenon. Phædrus follows a long and tortuous path into the highest abstractions, seems about to come down and then stops. Poincare’ starts with the most basic scientific verities, works up to the same abstractions and then stops. Both trails stop right at each other’s end! There is perfect continuity between them. “
…. [then after ~9 pages on Poincaré’s how to find and know facts, which are our ONLY basis of our reality, the Narrator continues with => ]
….What brought tears of recognition to my eyes was the discovery that these unfinished edges match perfectly in a kind of harmony that both Phædrus and Poincaré talked about, to produce a complete structure of thought capable of uniting the separate languages of Science and Art into one. “

One mile Northwest out of Manhattan, MT.

NEW TOPIC: ZMM ROUTE ROADS AHEAD.
….Back in 1968, the Narrator must have followed Old Rt 10 from Bozeman MT all the way to Missoula MT. Going West after Missoula, there is a stretch of I-90 which has overlaid most of Old Rt 10, except for marginal roads, which can be seen running various places, right along the side of I-90. None of those segments seem to have useful travel roads for the ZMM Traveler.
….In this area of Montana, the Old Rt 10 is now recent day Rt 2. => For the ZMM Route Traveler, the only (Non Interstate) way to go West from Three Forks, MT is Rt 2.
…A) For Google Satellite View Showing Rt 2 From Three Forks, MT To Butte, MT. Click Here.
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Further West, the Narrator’s Old Rt 10-Alt, between Anaconda, MT, and Drummond, MT is now present day Rt 1.
… I speculate that between these towns this was the main route prior to the construction of what became called Rt 10, and after that I-90.
….My 1964 Rand-McNally shows the segment from Drummond, MT to Missoula, MT as Rt-10 and four lanes. Dotted lines indicate imminent construction of I-90. This may have been completed by 1968, forcing (surprise?) the Narrator to follow an Interstate Highway, contrary to his stated policy! Could this stretch of Interstate, be the reason the Narrator does not mention any towns along this Highway, between Hall, MT and Missoula, MT?
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(Photo = September2006 0100 ...... ZMM Page = 232-233+242 ...... WayPt = 2006 509 4208ft)