so let me preface this by saying that i just biked from trenton nj to ledgewood nj mostly along 206 north (which has decent shoulder for 80-90% of the distance of it i was on) and i had no idea what i was in for in terms of hills and grade of those elevations. i am beat. i would have done the trip anyway but knowing always helps. same thing happened when i went from philly to wilmington.

distance/touring gurus: what tools do you use? commercial? free? online? it'd be great if google maps would add a contour view that took your driving/walking directions into account and told you total climb, but...