Heading North Toward Route 10, the Road Out of Town.

….“The next morning we check out of the hotel feeling refreshed, say goodbye to the DeWeeses, and head north on the open road out of Bozeman. The DeWeeses wanted us to stay, but a peculiar itching to move west and get on with my thoughts has taken over. I want to talk today about a person whom Phædrus never heard of, but whose writings I’ve studied quite extensively in preparation for this Chautauqua. Unlike Phædrus, this man was an international celebrity at thirty-five, a living legend at fifty-eight, whom Bertrand Russell has described as "by general agreement, the most eminent scientific man of his generation." He was an astronomer, a physicist, a mathematician and philosopher all in one. His name was Jules Henri Poincaré.
.... It always seemed incredible to me, and still does, I guess, that Phædrus should have traveled along a line of thought that had never been traveled before. Someone, somewhere, must have thought of all this before, and Phædrus was such a poor scholar it would have been just like him to have duplicated the commonplaces of some famous system of philosophy he hadn’t taken the trouble to look into.“(Cont.next)

Bozeman, MT.
To See A View of The Narrator’s Hotel (Hotel Baxter) on Main Street, Downtown Bozeman, MT. Click Here.
….And indeed, to go West from Bozeman in 1968, it would be appropriate to first “Head North “ on N. 7th Ave, but then after 7th crosses the Rail Road Tracks, it turns to the West to go to Belgrade, MT.
….Many things have changed due to the construction of I-90 in Montana, mostly completed by 1960. I-90 going West from Bozeman, MT either overlaid or skirted the old "ZMM Route” (~US-10), from Bozeman, MT to beyond Butte, MT. (Ditto for the Interstates I-90 going West from Miles City to Bozeman.)
….To experience the old "ZMM Route” West from Bozeman, I recommend that the Pirsig Pilgrim take the frontage roads that may be found along I-90. Out of Bozeman, in many cases, these frontage roads are the actual pavement of the old U.S. Rt 10. To do this from Bozeman, take North 7th Street which eventually angles left into a Frontage Road. This will follow the RR tracks (and parallel to I-90) through the towns of Belgrade, Manhattan, and Logan. After that you will see many frontage roads leading off of I-90 at the interchanges, but most of these are not really a better travel experience, from that of I-90 itself, because they are so close to each other. Consult with local maps to find the best ones.

To Read About Montana Interstate Highway Construction (& Much Discussion Of) How To Find Montana ZMM Routes Near I-90 & I-94,
…. Click Here, and AFTER this Photo Comes Up, Scroll down to => by time of Mr. Pirsig’s Travel.

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(Photo = 108-0856 ...... ZMM Page = 232 ...... WayPt = 227w ~4850ft)