10 square miles
The Columbia River is over 1200 miles long. Portland to DC is about 2800 miles.
250 miles
It's a distance of 98.6 miles.
555
DC to Newark is 95 miles. About the same to Dover.
air miles from Chicago Washington DC
about 230 miles
There are about 145.034 miles between Washington DC and Virginia.
air miles from Chicago Washington dc
roughly 630 miles
624 miles