Research of horizontal moving of sphagnum mat has allowed considering them as the mechanical systems influencing on the formation of mire microforms. Precision measuring of morphology of a mire surface has allowed establishing the zonality of microforms and the character of sphagnum mat movement in each zone. Each zone has its own parameters of vertical dynamics. It allows assuming, that the spatial organization of microforms of mire surface depends on interaction of sphagnum mat of the next microforms, and stability of the microforms is connected with heterogeneity of a peat deposit. Therefore the natural distribution of mire microforms in space is defined by the development of symmetry of mire as a whole. The basis of the development of the symmetry is the coordinated movement of moss mat on the all surface of mire, the vertical fluctuation of peat deposits and the step character of a table of a mire waters.