Azerbaijan is typified by relief of different kinds and complexity. Over 50% of the country's area consists of the mountain ridges, crests, yailas and plateaus rises up to hypsometric levels of 400-1000m, (including the Middle and Lower lowlands), in some places (Talish, Jeyranchol-Ajinohur and Langabiz-Alat foreranges) up to 100-120m, as well as 0-50m up (Gobustan, Absheron) the rest part of which are plains and lowlands. Hypsometric marks within the Caucasus region vary in the range from about -28m at the Caspian Sea shoreline up to 4466m at Mount Bazardüzü.