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Cañadas Canyonlike Valleys and Montañas del Oriente by Mexico-Guatemala Border

15.9N 90.6W

February 15th, 2012 Category: Mountains

Mexico - January 3rd, 2012

This APM image shows a change from mountains to flat terrain by the border of Chiapas, Mexico and Guatemala. Visible in the upper left quadrant is the Lacandon Jungle (Spanish: Selva Lacandona), an area of rainforest which stretches from Chiapas, Mexico into Guatemala and into the southern part of the Yucatán Peninsula. The heart of this rainforest is located in the Montes Azules Biosphere Reserve in Chiapas near the border with Guatemala in the Montañas del Oriente region of the state.

The Lacandon has approximately 1.9 million hectares stretching from southeast Chiapas into northern Guatemala and into the southern Yucatán Peninsula. The Chiapas portion is located on the Montañas del Oriente (Eastern Mountains) centered on a series of canyonlike valleys called the Cañadas, between smaller mountain ridges oriented from northwest to southeast. It is bordered by the Guatemalan border on two sides with Comitán de Domínguez to the southwest and the city of Palenque to north.

The dark red spot near the right edge of the image is the Laguna Lachuá, a Karstic lake in Guatemala. It is located in the middle of a national park covered with tropical rain forest, northwest of Cobán, near the border between the departments of Alta Verapaz and El Quiché. The lake is near circular in shape and is probably a cenote or doline. The Peyan river forms the principal water inflow and the Lachua river its main outflow.

West Bengal, India, from Himalayas to Gangetic Plain

November 18th, 2011 Category: Mountains, Rivers

India - November 9th, 2011

This APM image shows rivers flowing down from the Himalayas in India and Bhutan (upper right), and across the Indian state of West Bengal, into Bangladesh.

As one can see from the contrast in this image, West Bengal encompasses two broad natural regions: the Gangetic Plain in the south and the sub-Himalayan and Himalayan area in the north.

The state has a total area of 88,752 square kilometres (34,267 sq mi). The Darjeeling Himalayan hill region in the northern extreme of the state belongs to the eastern Himalayas.  The narrow Terai region separates this region from the plains, which in turn transitions into the Ganges delta towards the south.

Tasman and Forestier Peninsulas of Tasmania, Australia

43S 147.7E

November 8th, 2011 Category: Mountains

Australia - November 7th, 2011

Visible from the center to the bottom of this image are the Tasman Peninsula and the Forestier Peninsula, on the Australian island and state of Tasmania. The Tasman Peninsula (bottom) lies south and west of Forestier Peninsula, to which it is connected by an isthmus called Eaglehawk Neck. That isthmus is in turn is joined to the rest of Tasmania by another isthmus called East Bay Neck.

As can be observed by the contours of this APM image, Tasmania has ’rounded smooth’ mountain ranges similar to mainland Australia. The most mountainous region is the Central Highlands area, which cover most of the central west parts of the state. The central east area (the Midlands) is fairly flat, and is predominantly used for agriculture.

Jakarta on Northwest Coast of Java, Indonesia

6.2S 106.8E

October 10th, 2011 Category: Mountains

Indonesia - October 6th, 2011

This APM image shows Jakarta, the capital and largest city of Indonesia. Located on the northwest coast of Java, it has an area of 661 square kilometres (255 sq mi).

Jakarta’s position on Java’s northwest coast is at the mouth of the Ciliwung River on Jakarta Bay, which is an inlet of the Java Sea. Jakarta lies in a low, flat basin, averaging 7 metres (23 ft) above sea level; 40% of Jakarta, particularly the northern areas, is below sea level, while the southern parts are comparatively hilly.

Rivers flow from the Puncak highlands to the south of the city, across the city northwards towards the Java Sea. These rivers, combined with Jakarta’s low topography make it prone to flooding from swollen rivers in the wet season and high sea tides.

Rivers Flowing from Himalayas into Bangladesh

26.1N 89.4E

July 14th, 2011 Category: Mountains, Rivers

Bangladesh - July 12th, 2011

This APM image shows rivers flowing down from the Himalayas and into Bangladesh. The physical geography of Bangladesh is varied and has an area characterized by two distinctive features: a broad deltaic plain subject to frequent flooding, and a small hilly region crossed by swiftly flowing rivers.

The country has an area of 144,000 square kilometers and extends 820 kilometers north to south and 600 kilometers east to west. Roughly 80 % of the landmass is made up of fertile alluvial lowland called the Bangladesh Plain. The only exceptions to Bangladesh’s low elevations are the Chittagong Hills in the southeast, the Low Hills of Sylhet in the northeast, and highlands in the north and northwest.