Google Maps is NOT your friend - esp. if you are a cross-country touring cyclist.
The map you linked to has you riding on remote, unmaintained dirt roads, some possibly gated.
Also, puts you on I-80 and I-25 for a while.
The best route across Nevada is US 50 thru Ely.
You can access it from Reno by riding up and over Virginia City or riding I-80 to Fernley. (Yukk!)
Or you can ride up to Pyramid Lake and back down or start at the capitol in Carson City, instead.
In Utah, I would continue on US 6 to Payson - then bike routes thru Prove -
Then US 189 to Heber City - then US 40 east to Colorado thru Vernal.
There is a nice mostly paved forest road east of Spanish Fork over to Strawberry on US 40.
There are also excellent, paved back roads that get you off of US 40 most of the time.
In Colorado it's pretty straight-forward.
Continue on US 40 past Steamboat Springs - ski town, all services -
Then switch to Hwy 14 thru Walden and Fort Collins to Sterling.
Hwy 14 has fairly light traffic except near Fort Collins -
And stunning scenery in North Park and the Poudre River Canyon.
Continue on US 138 to Julesburg.
There are plenty of options for Nebraska.
It all depends when they announce the Ragbrai starting point at the end of Jan.
I suspect that it will be Onawa, Missouri Valley, or Council Bluffs this year,
since it has been NW & SW in recent years.
My suggestion for Nebraska is from Ogalalla, head north on Hwy 61 to Arthur.
Hwy 92 from Arthur to Stapleton is remote - but the Sandhills have never been plowed.
You see the Great Plains largely as they were 1000 years ago.
East of Broken Bow you could take Hwy 70 & Hwy 22 to Columbus.
From Columbus you can tailor your route to the starting point of the Ragbrai.
Nebraska Bike Map: currently unavailable because of broken link
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Again, AVOID the Google Maps bike app - it is often total garbage.
