The ntsb accident that avbug posted the aircraft departed VFR nonradar and was was supposed to be maintaining VFR when they impacted terrain.
The aircraft departed VFR non-radar in what should have been an IFR departure, and had received a radar heading by the controller prior to impact. They flew that heading to their deaths. The ODP would have provided adequate terrain coverage.
Regardless, the point is valid; know your terrain, know your departure, and remember that acceptance of a clearance should always be predicated on your ability to make the informed decision. Simply accepting the clearance because it's given, or as given, blindly, can get you killed.