The Venture HC is designed to save 10 Tracks, 500 Waypoints, and 50 Routes.
You caught me on the right day because I got back from a hike a few hours ago.
Just in case you do not have a manual here is a link to your manual.
http://static.garmincdn.com/pumac/eTrexLegendHCx_OwnersManual.pdfNot sure what you want to do, do you want to create a waypoint at your vehicle and one at a stand out in the woods and be able to find your way back to them.
Or do you want to create a Track and then back track on top of that to your stand or vehicle?
Normally I create a waypoint where I park so I can find my PU in the dark. I also create waypoints at potential stands and other areas of interest.
Page 20 of the manual explains how to Back Track on a track you have created and saved.
I normally navigate to a waypoint I have created. As I get ready to depart my vehicle I create a Waypoint for example I will call this one PK4 for Park. When I am ready to hunt back to my rig I go to the Find Menu on the etrex or the Main Menu on other Garmin Units. You will find a Waypoints Icon. Select the Waypoint Icon, and from the dropped down select the waypoint you want.
I will follow up with Tracks and Track Back.
When you refer to storing three locations are referring to Tracks or Waypoints?