He snorted a shrill defiance.

He plunged with fore hoofs in the air.

He slid and broke a way down the steep, soft banks, through the thick brush and thick clusters of saplings, sending loose rocks and earth into avalanches ahead of him.
He fell over one bank, but a thicket of aspens upheld him so that he rebounded and gained his feet.

The sounds of fight ceased, but Dale's thrilling call floated up on the pine-scented air.
Before Helen realized it she was at the foot of the slope, in a narrow canuon-bed, full of rocks and trees, with a soft roar of running water filling her ears.

Tracks were everywhere, and when she came to the first open place she saw where the grizzly had plunged off a sandy bar into the water.