For a two-day drive, you can plan to drive about 300-400 miles on the first day and then 350-450 miles on the second day. Here is a possible itinerary:
Day 1:
* Start from Sacramento and head east on I-80.
* Take I-80 to Reno, Nevada, which is approximately a 4.5-hour drive.
* From Reno, take US-395 north for about 2 hours until you reach Susanville, California.
* In Susanville, you can stay at a hotel or campground.
Day 2:
* Start from Susanville and continue on US-395 north for approximately 5 hours.
* This part of the drive will take you through some beautiful scenery, including Eagle Lake and Lassen Volcanic National Park.
* From Lassen Volcanic National Park, you can continue north on US-395 for about 1 hour until you reach Burney Falls.
* From Burney Falls, continue on US-395 north for another hour until you reach McArthur-Burney Falls Memorial State Park.
* In McArthur-Burney Falls Memorial State Park, you can stay at a hotel or campground.
Day 3:
* Start from McArthur-Burney Falls Memorial State Park and continue on US-395 north for about 5.5 hours.
* This part of the drive will take you through some beautiful scenery, including Shasta-Trinity National Forest.
* From Shasta-Trinity National Forest, you can continue north on US-395 for about 3.5-5 hours until you reach West Yellowstone, Montana.
This itinerary allows for a reasonable pace and plenty of time to stop and enjoy the scenery. It is also important to factor in time for road construction and weather delays.