Garmin Echomap 73 CV - Marking EXACT Tree or Rock

[Bartableman7]

Regardless of the type of fish locator..I'd like to know best practices for marking and casting at an exact spot.  I've watched the Youtubes and done both triangulating 3 Waypoints from different directions and thrown in markers.  I swear I can drive right over the spot and not see it again.  What do you all do?  Thanks all.

[Craig P]

Are you properly marking on that unit?  If you just hit “Mark” you will be marking your exact position, think man over board type of mark. On the Garmin, you should pause the sonar and then tap the actual structure you want to mark and then select create waypoint.

[@reelChris]

I'm pretty sure that without a waypoint sensor, GPS doesn't know to any great degree of accuracy which way it is facing when stationary.  

[king fisher]

You are right.  Unless your unit is hooked up to a separate compass the GPS boat icon will not show you which way the boat is pointed if you are not moving.  The GPS will show you what compass heading the object is in relation to your boat, but the icon wont necessarily show the bow pointed in the direction it is actually pointed.  Best way I have found with a Garmin unit is to scroll back and mark the structure as  a waypoint on the fish finder screen.  Then go to split navigation screen, and fish finder screen.  Drive away from the waypoint.  Turn around and drive directly over the way point.  Throw out a marker the instant you see the structure you have marked appear on the fish finder screen.  If you don't see it on the fish finder, do the same thing from a different direction.  The GPS is very accurate and your waypoint is exactly where the map has it located.  The problem is keeping the boats location in relation to the object without getting confused by looking at the little boat on the screen.  I like to use markers because they are simple.  Other anglers are proficient with other methods and there are many videos on U Tube that show those methods.   The saltwater boat I work on has all the electronics connected to a compass.  The boat icons are always pointing the exact magnetic heading regardless if moving or not..  It makes it way easier to stay on a a waypoint.