Omg. Yes we have been waiting for this successful project to return. There are many stumps that are in the way. Dig and hoe around these as before, then get the chains out. A smart project. For bamboo, small bushes roots, and up to 15 inches stumps. Dig down more. Very smart and professional experience men. Have new thoughts, thoughts knives, an saws yosharpened may give you ideas. 😊
Don’t forget to fill the holes. And get broken roots to smooth ground for mowing, very nice. Dont give up on that bush, take your pick and swing in all around it that will loosen enough to lift and carry. Idea, use to dolly wagon and three wheelbarrow to get the rocks out of there. A lot of rock there get these out and move back to bone yard, you want smooth yards under that snow that will come.
Oh, be sure to get that great dirt that cousin had wheelbarrowed out to fill these hole firmly and with extra dirt to pack down in the rains and snow to keep the land flat.