Bob Dylan - River Theme Chords & Tabs

Main Riff--->   A------0---0----|
                E-0-2----2------|

During the verse the the second E or E(2) is played by taking the regular open D chord 
and sliding it up 2 frets and muting the open D string.

[ Tab from: https://www.guitartabs.cc/tabs/b/bob_dylan/river_theme_crd.html ]
Riff

A     E
Laaa  la la

D            E(2)
la la la la la

Riff

A    E
Laaa la la

D            A
la la la la la

Riff

Repeat as necessary