Abstract: A portable dome structure for field use. The dome has a number of preformed panels that are bent at the proper angles to form part of a dome structure. Each panel has a series of flanges around its perimeter to allow the panels to be bolted together. The sub panels are formed into quarter sections, that be carried on the floats of a small airplane. The quarter sections can then be bolted together in the field, along with floor sections to make a complete structure. No complex flaming is required. There is also no covering that has to be placed over the framing. The preferred style of dome is elliptical, which creates more headroom without more floor space. In addition to the basic dome shape, the four quarter section can be bolted to rectangular extension pieces. These pieces can be added as desired to make the dome longer, or wider, or both. Use of these extension pieces make this structure highly versatile.