Which preposition to use with riverward

through Occurrences 2%

Outwardly, gazing riverward through the dusty pane, she bore herself with utmost serenity.

across Occurrences 1%

"Hah! and look yondah another incredib'!" She pointed riverward across the Square.

to Occurrences 1%

"Whatever is it?" asked G. Mrs. Townley pointed riverwards to where a thin column of blue-grey smoke rose and hung like a cloud in the hot, still air.

toward Occurrences 1%

A little later they were walking riverward toward a brilliant orange sky, against which the Soldiers' and Sailors' Monument loomed gray and majestic.

Which preposition to use with  riverward