Highway 20 is a pretty easy drive, watch for the open range areas. Once you hit Juntura the highway starts getting some curves, but nothing crazy. It will straighten out before Harper, but the last leg of those curves are probably the most intense of the drive - just watch your speed. The route takes you up to Ontario, I do suggest taking I84 South to Caldwell.
Do keep an eye on TripCheck.com before you head out in case there are any fires en-route.
Two Wire Fox Terriers; Sarge & Sully
2007 Winnebago Sightseer 35J
2020 Jeep Gladiator Rubicon