Assuming that our trip is 10,000 miles (which we’re now thinking is a pretty big underestimate), then 5,000 miles would be the halfway point distance-wise. Our trip odometer reached 5,000 miles exactly on September 24, not far from Mt. Rainier in Washington.
If our trip is 90 days (which seems like it’s probably a pretty good estimate) then the halfway point time-wise would be day 45, October 3.