A tree mounted shelter assembly secures a shelter to a tree to prevent damage to an object under the tree due to material falling from the tree. The assembly includes a tarp having an interior edge and an exterior edge. The interior edge defines an aperture through the tarp configured for encircling a trunk of a tree. Each of a plurality of lines has a first end coupled to the tarp and a second end configured for coupling to the tree wherein the tarp is suspended under limbs of the tree.