Экологическая тропа : (метод. рекомендации по устройству экол. троп в Мурм. обл.). / [О.А.Макарова]. - Мурманск, 1995. - 12,[1] с.: ил.

length of the river as well as about the speed of its current and fish species. You should span brooks and swamps with bridges, tell about swamp plants, types and age of the forest, kinds of trees, the influence pollution produces to the environment. On the way up to the mountain you should mention the altitude and the alternation of vegetable zones. The information about animals and birds should be based on the tracks of their activity and living. Speaking about the birds is impossible without participation of the specialist-orriithologist. You should mark the most beautiful places in order to give an opportunity to the tourists to make photoes on the background o f the lake, mountain or town. 4. At the begining of the path you should remember the tourists to keep the following rules: to preserve the nature, to leave the rubbish and make fire at the places specially provided for these purposes. The dogs and the radio are not allowed. 5. You should prepare and print the detailed and illustrated description of the path including the scheme (a sort of passport) according to the marking-out. The stand with the scheme should be placed at the begining or at the end of the route. Some special souvenirs and banges should be offered to the tourists. 6. You should think about laying the spare path and use it to avoid the damage caused to the nature by excessive amount of the visitors. Don ’t lay the path at the areas which are unique from the geological, historical or natural (rare animals and plants) point of view. Enclosed: the scheme of the path and path ’s description.