Actually, that's the Whelen lean-to tent, designed and advocated by Colonel Whelen. The picture you show is a few pages further in "On Your Own in the Wilderness" from what I posted. He also has a plan for a Forester tent which I had thought of making when I made the basic lean to. Lots of canoeists use the Whelen lean-to since they can carry the greater weight easier than one can rolled up in a back pack.

I still have to waterproof what I sewed together. I have the ingredients, just need to take the time to mix them together, set up the lean-to and paint the waterproofing on....

~Kees~