The snow aslope.
aslant definition by Webster's New World
Webster's New World College Dictionary Copyright © 2010 by Wiley Publishing, Inc., Cleveland, Ohio. Used by arrangement with John Wiley & Sons, Inc.
on a slant; slantingly; obliquely
on a slant across
aslant definition by American Heritage Dictionary
adverb & adj.
At a slant; obliquely.preposition
Obliquely over or across: lay the paddle aslant the gunwales.