After playing around with the song for a while, here's the chord pattern I finally settled on.    It works for me, but in several places there's more than one chord that will fit.  Depends a lot on the harmony you use.
I capo to the second or third fret.
*  The straight veritcal line ( | ) in the chord pattern below is supposed to be a walkdown arrow, but I can't get the arrows to come out in the posts, so you'll have to add the points to the arrows.

I Know How The River Feels  (Steven Dale Jones/Amy Powers)     
Recorded by Diamond Rio
At this site you can download a demo MP3 of the song by Clay Aiken.
Key:  G  (Verse and chorus both start on the #4 chord.)

C                                                   Cmaj7
They say for everyone there's that certain one
G         |*   Em     D
Out there somewhere.
C                                 Am7    
I've been lookin' hard, searchin' every heart,
G    |      Em  D
Gettin'  nowhere.
C                           D                           Em**
Didn't know I was makin' my way to you.

C                                G       |      Em          C                 G  |  Em
Now I know how the river feels     when it reaches the sea.
   G          C            G              Em                     D
It finally finds the place it was always meant to be,
  C                Cm                G                  |               E7
Holdin' fast, home at last, knowin' the journey's through
          Am                    D                            G
Lyin' here with you I know how the river feels.


C                                              Cmaj7           G    |   Em    D
 Miles of loneliness now make perfect sense here beside  you.
C                                          Am7               G   |   Em    D
 Tears like water fall.  It was worth 'em all just to find you,
           C               Em              (G)  C
And yours are the last arms I'll run to.

   D7                           G       |    Em          C                G  |  Em
Now I know how the river feels   when it reaches the sea.
   G         C             G              Em                     D
It finally finds the place it was always meant to be,
  C                Em       Cm   G                    ‚             E7
Holdin' fast, home at last, knowin' the journey's through
          Am                   D                             G
Lyin' here with you I know how the river feels.
  C                 G         Cm   G                  |               E7
Holdin' fast, home at last, knowin' the journey's through
          Am                    D                            G
Lyin' here with you I know how the river feels.


** Use either Em or C, depending on how you modulate the tune.