This is a brilliant and thorough trip report. Well done, Nemo.
Coincidentally, my own upcoming tour intersects your route at UT rt. 95. Judging by your pictures and rapturous praise, I chose well. Here's the whole 2-week loop through WY, CO, and NM, the 3 states I have fambly in:
Route, part 1: CA to WY
-4, 88, 89, etc to 50
-50 through Nevada to Delta, UT
-from Delta, rt 6 to I-15 @ Santaquin
-I-15 N to Spanish Fork
-from Spanish Fork, rt 6 E to Helper
-From Helper, rt 191 N to Duchesne
-From Duchesne, take rt 40 E through Steamboat
Springs, CO
-25 miles SE of Steamboat, take 14 E to Laporte, CO – MARGARITAS with remote fambly unit 1
-take rt 287 to Laramie, then rt 230 W to Riverside
-at Riverside, continue on 230 for about 2 miles to River Ridge Cabins/Bob Merrill Meats - BEER with remote fambly unit 2
Route, part 2: WY to NM
-Rt 70 W to rt 789 S
-789 S becomes CO st rt 13
-take rt 13 to Rifle @ I-70
-take I-70 E to Glenwood Springs
-take 82 S to 133 @ Carbondale
-take rt 133 to Hotchkiss, then right on 92 to Delta
-in Delta, left on rt 50/550 to Montrose
-continue on 550 S to Durango
-at Durango, left on rt 160 E to Pagosa Springs
-At Pagosa Springs, right on 84
-crossing NM border, 84 merges with 64 – go left
toward Chama/17
-84 merges with 285
-take 84/284 S to Santa Fe - CHAI with remote fambly unit 3
Route, part 3: NM to CA
-back up 84 to 502 W to Los Alamos
-502 W merges with 4 W
-right on rt 126 to Cuba
-550 N to Bloomfield
-at Bloomfield, left on 64 W – GAS UP
-at Shiprock, turn right on rt 666
-continue on rt 666 through Cortez
-take rt 666 to Monticello, UT
-take rt 191 S to Blanding
-take rt 191 S from Blanding – after 4 miles, turn
right on rt 95 to Hanksville
-from Hanksville, take 24 W to Sigurd
-from Sigurd, take 28 N to 50 W @ Salina
-take 50 W to I-15 at Scipio
-take I-15 south 12 miles to Holden, then exit at 50 W
-take 50 W to Delta, where it joins rt 6
-take 50 W to S. Lake Tahoe, CA, or take 95 S to
Hawthorne
-89, 88, 50, 4 etc.