A bit of a segue (pardon the pun!) It seems like Under the X in Texas (by Johnny Gimble) has been around forever, but I see in his partial discography on Wikipedia that he first published it in 1992. It talks about maps and travel, not a specific road, but it always struck me as a highway type of song. It's also a popular Cowboy song (Red Steagall, who caught polio at age 15 and took up guitar for PT—he apparently got a lot of mileage out of the song.)

The usual proviso: there are a lot of lyric sites that repeat the same mistakes from wherever the first one was. I poked around and found a closer-to-accurate transcription (from CowboyLyrics.com) that I corrected. The Cowboy Lyrics song may be based on Steagall's performance. I transcribed the corrected lyrics from Gimbel's performance.

Under the X in Texas
by Johnny Gimbel


I'm sittin' here looking at a map, I got laid out on my lap
There's not too many places I ain't been
But the one place I love best, why it's spread all over the west
And I'm tryin' to figure how to get back home again

[chorus]
I wish I was sittin' right under the X in Texas
Right in the heart of where my heart must be
No matter where I roam I never feel at home, ‘cept in Texas
Right under the “X” in Texas, is where I'd like to be

[solo, various: piano - guitar - steel - fiddle]

I don't know what I miss the most
Those mountains out west or the southern coast
Or just bein’ where a fella can see for miles and miles
The East Texas hills and the tall pine trees
The level land with the prairie breeze
Maybe I'm lonesome to see a Texas smile

[chorus]
Right now
I wish I was sittin' right under the X in Texas
Right at* the heart of where my heart must be
No matter where I roam I never feel at home, ‘cept in Texas
Right under the “X” in Texas, is where I'd like to be

No I aint got nothin’ against the rest
But why settle for better when you know what’s best
And under the “X” in Texas is where it's best for me



*(In the second chorus he changes the "in" the heart to "at" the heart)