[Vigilanteman]

There is a 55 MPH through the Virgin River Gorge . . .

One of the most spectacular and beautiful stretches of highway in the nation. You would have to be a suicide jockey to take it at much more than 55 mph.

Interesting fact: I-15 through Utah and I-80 through Wyoming are both close to exactly 400 miles long. The last mile mark going north or east on either is, if I recall, either 400 or 401.

[Myrddin]

I-15 was 403 at the ID border for many years. Apparently, there was a defective measurement near MP346. The "Mormon graffiti" that was near MP370 is now at MP367. The last MP on I-15 is now 400 at the ID border.