the east and Chota Nagpur plateau on the west.” The same could be said of the Asansol and Durgapur subdivisions of Bardhaman district. The Singhbhum area contains much more hilly and broken country. The whole of the western part is a mass of hill ranges rising to in the south-west. Jamshedpur sits on an open plateau, above mean sea level, with a higher plateau to the south of it. The eastern part is mostly hilly, though near the borders of West Bengal it flattens out into an alluvial plain. In the Singhbhum area, there are hills alternating with valleys, steep mountains, deep forests on the mountain slopes, and, in the river basins, some stretches of comparatively level or undulating country. The centre of the area consists of an upland plateau enclosed by hill ranges. This strip, extending from the Subarnarekha River on the east to the Angarbira range to the west of Chaibasa, is a very fertile area. Saranda forest is reputed to have the best Sal forests in Asia. Climate The Chota Nagpur Plateau has an attractive climate. For five to six months of the year, from October onward the days are sunny and bracing. The mean temperature in December is . The nights are cool and temperatures in winter may drop below freezing point in many places. In April and May the day temperature may cross but it is very dry and not sultry as in the adjacent plains. The rainy season (June to September) is pleasant. The Chota Nagpur Plateau receives an annual average rainfall of around , which is less than the rainforested areas of much of India and almost all of it in the monsoon months between June and August. Ecology The Chota Nagpur dry deciduous forests, a tropical and subtropical dry broadleaf forests ecoregion, encompasses the plateau. The ecoregion has an area of , covering most of Jharkhand state and adjacent portions of Odisha, West Bengal, Bihar, Chhattisgarh, Uttar Pradesh, and Madhya Pradesh. The ecoregion is drier than surrounding ones, including the Eastern Highlands moist deciduous forests that covers the Eastern Ghats and Satpura Range to the south, and the Lower Gangetic Plains moist deciduous forests in the lowlands to the east and north. The plateau is covered with a variety of various habitats of which Sal forest is predominant. The plateau is home to the Palamau Tiger Reserve and other large blocks of