The intersection of 90 degrees W and 30 degrees N would be found in the state of Louisiana. It marks the location of New Orleans.
On I-71 just north of the center of Columbus, OH.
South Dakota. Approximately 3 miles from Gettysburg.
Louisiana
wisconson
That would put you somewhere in Texas.
Tallahassee
20000
North, 41 degrees.
43 degrees North 77 degrees West
Tallahassee
65 N 150 W is the Tanana Valley State Forest. The American State is Alaska.