There are a lot of options for land anchors. I live in Nevada and there are a lot of desert runs, meaning no trees! So if you run out here, and get stuck, you had better know some of the different methods for self extraction.
The best way to extract is have someone else pull you out. This can be a simple pull, but you make have to use a kinetic strap. These are fairly cheap and lightweight. Buy one, or two. You will need a solid anchor point connected to the frame. I have seen hitch shackles breach and go flying into a windshield. Should never have happened, but it did.
If you are not too deep, try digging out. Every overland vehicle should have axe, shovel, and hi-lift type Jack (if you're in sand, you'll need a base for the Jack). There are several good tracks that you can put under the wheels in the direction you want to go. After research, I went with the maxtrax. It has worked very well for me. But the PSP (pierced steel planking), and sand ladders work well. If this works, you just drive up and out. Nice!
Everyone should have a winch. If you have one, it should have rope, not wire cable. If you break a cable, you probably won't have the tools to slice it. A rope can be tied into a knot and continue to work.
If you don't have a winch, you need to be able to use you wheels. Fortunately, most off road wheels have spokes, so you can make a windless for a short pull out.
Now for the anchor: there are a lot of choices. A after a lot of research, I chose the PullPal. It works every time, and it is easily recovered. If you are just starting out, you can use a rock, or dig a hole perpendicular to the line of pull and use a log, rock, spare tire, or other long item to pull against. Don't forget to recover your tire. You can always use a picket system.
I would recommend that a group of you get together and review and actually try some of these methods before you need them. This will help you learn thru someone else's experiences, and you learn to work as a team.
Be happy to share my knowledge and experiences. I have to start including pictures.
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