fall away toward
fall away toward (something)
To move in a downward direction toward something. The hill fell away toward the narrow road below.
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.
fall away toward something
to slant downward toward something. The yard fell away toward the shore of the lake. The broad expanse of prairie land fell away toward the river bottomland, and beyond that, the river itself.
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs. © 2002 by The McGraw-Hill Companies, Inc.