Behold the rocky wall br That down its sloping sides br Pours the swift rain-drops, blending, as they fall, br In rushing river-tides! br Yon stream, whose sources run br Turned by a pebble's edge, br Is Athabasca, rolling toward the sun br Through the cleft mountain-ledge. br The slender rill had strayed, br But for the slanting stone, br To evening's ocean, with the tangled braid br Of foam-flecked Oregon.