Thank you all, you have helped.
Without a doubt, I will rely on my compass and map.
Will try out the Garmin for a couple of days in Sedona before GC
Agree, lots of homework to do

@John9L
A Novice with the Garmin, but what you have sent me is all that I really need, I should use your map and tracks.

Am I understanding it corretly?

Could you call me, if appropriate 248-217-8278

Heading to Sedona for 4 days of day hikes and hopefully a trek down into Grand Canyon, if the people in DC get together. Trip begins this week! I have always just used a compass and my spot, but yesterday bought a Garmin eTrek 20. Please keep it simple, where should I buy my downloadable topo maps t...