The Committee for Natural Resources and Environment Protection of the Leningrad Region gratefully acknowledges:

• The authors of the Red Data Book of the Leningrad Region, the materials of which are used in the web-site;


• Scientific organizations and people who gave valuable advice on the site's development;


• The Committee for Physical Culture, Sport and Youth Policy of the Leningrad Region (http://www.lenobl.ru/gov/committee/youth) for providing data on recreational-tourist infrastructure;


• The owners of the Google search engine for providing Google Maps API service;


• The developers of extensions PdMarker (Peter Jones) у TLabel (Tom Mangan) for permission to use their products;


• People whose photographs are used at this web-site.