An agricultural harvester (10) includes an auger assembly (56) including an auger (76) having an auger shaft (78) defining an axis of rotation (A1) and a flighting (80) carried by the auger shaft (78), the auger (76) being configured to rotate the flighting (80) in a sweeping path about the axis of rotation (A1); and an auger trough (82) placed adjacent to the auger (76) to hold crop material in the sweeping path and having a bottom (86) below the sweeping path. The auger trough (82) has a first portion (88) on a first side of the bottom (86) and a second portion (90) on a second side opposite the first side of the bottom (86). The agricultural harvester (10) is characterized in that the second portion (90) of the auger trough (82) has an end (102) directed toward the first portion (88) in a direction of the sweeping path (104).