In the article the regulations resulted by authors in a work having been published before [2] are developed. Here the digital model of district using a principle of self-identification of the topographical information is considered in details. The digital model is positioned as the information resource containing exhaustive data on district. The digital model is created by direct digitization of district. Now for discrete representation of the information on district the following elements are used: readout, pixel and voxel, accordingly, for linear, areal and volume objects. For the problem solution in the offered statement the available set of elements of discrete representation is insufficient. It is offered to add with its special element of digitization of topographical objects - the topel. In the work the description of properties of an element is given. The top fur-tree is virtual and has a variable quantity of properties the number of which is defined by complexity of object and the set level of completeness of the object’s properties representation. In certain cases the top fur-tree on properties can coincide with readout, pixel and voxel. Generally top fur-trees represent objects of various physical sizes and different saturation with the topographical information. The size of a specific topel can be situational and unessentially multiple to the size of the base element. Using top fur-trees allows creating both regular and irregular digitization of a district. The top fur-tree can be considered as a universal element of discrete representation of the district. Top fur-trees are identified by co-ordinates in the set co-ordinate system. The model consists of a set of top fur-trees. The next top fur-trees will be coordinated both in the visual relation, and in all volume of the digital information containing in them. The user models formed on the territory can have any forms and sizes. In particular the model can cover with the required stock the nomenclature sheet of standard topographic maps’ numbering.