Just watched the PBS Nova program "Mystery of the Megaflood".
Fascinating program, and the landscape left behind in Eastern
Washington state is beautiful and somewhat bizarre. Is it easy or safe
to fly cross country over the "scabland" features? Are these sights
reachable from Ephrata?

See the interactive map with links to pictures:
http://www.pbs.org/wgbh/nova/megaflood/scablands.html

Chris