the long stretches are all 60 or 65, most being 65. when you come up on towns most of them are small enough they don't make you slow down too much, usually down to 25. some of the larger towns you may have to drop to 35 or 25.
It looks like Valparaiso, Columbus, Neligh (never heard of it), O'neill, and Spencer are only ones you will have to go into town. Most of the other ones look like you skirt around or through.
'13 Ingot Silver Escape Titanium AWD
'03 Infra Red EAP SVT, #1687, 1 of 101
'04 CD Silver SVT, #877, 1 of 135 May 2011 ROTM, FF11: Best Display, Best of Show; AFN12: Best SVT, Best Audio, Finest Five, Carlisle Nifty Fifty