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Posts tagged Peace River

The Peace River Country in British Columbia and Alberta, Canada

56.1N 120.6W

March 10th, 2010 Category: Rivers

Canada - January 25th, 2010

Canada - January 25th, 2010

This orthorectified image shows the Peace River Country (or Peace Country), prairie land around the Peace River in Canada. It spans from northwestern Alberta to the Rocky Mountains in northeastern British Columbia, where the region is also referred to as the Peace River Block. This image focuses on an area by the British Columbia-Alberta border.

The Peace River Country has no fixed boundaries but covers an area of approximately 100,000 miles² to 150,000 miles² (260,000 km² to 390,000 km²). In British Columbia, the area extends from Monkman Provincial Park and Tumbler Ridge in the south, to Hudson’s Hope and the Williston Lake in the west, to Fort Saint John and Charlie Lake in the north.

In Alberta, the region stretches from Grande Prairie and Valleyview in the south, to High Prairie and Lesser Slave Lake in the east, to Fort Vermilion, High Level and Rainbow Lake in the north.

Charlotte Harbor Estuary, Florida

26.9N 82W

September 14th, 2009 Category: Lakes, Rivers

Florida, USA - August 31st, 2009

Florida, USA - August 31st, 2009

Peace River and the Caloosahatchee River flow across the state of Florida into the Gulf of Mexico (lower left quadrant). The Peace River (left, above center) flows first into the Charlotte Harbor Estuary, a natural estuary spanning the west coast of Florida from Venice to Bonita Springs.

The Charlotte Harbor Estuary is classified as a bar-built estuary, formed when sandbars build up along the coastline. The sand bars block the waters behind them from the sea. Such estuaries are tend to be shallow with minimal tidal action.

The estuary is one of the most productive wetlands in Florida; however, it is also a threatened ecosystem resulting from the rapid increase of growth and development, poor land use policies, and the overuse of natural resources.

The Caloosahatchee River (south of Peace River) is also part of the estuary’s watershed and is connected to it via Pine Island Sound. It drains rural areas on the northern edge of the Everglades, northwest of Miami. An important link in the inland waterway system of southern Florida, the river forms a tidal estuary along most of its course and has recently become the subject of efforts to restore and preserve the Everglades.

Visible in the upper right corner is Lake Okeechobee, which is artificially connected to the Calossahatchee River and another lake, Lake Hicpochee, through the Caloosahatchee Canal.

This canal allows continuous navigation from the Caloosahatchee to the Okeechobee Waterway system; however, the canal and the use of the river’s water supply for urban and agricultural purposes, have substantially diminished the river’s flow levels. This has, in turn, reduced the water supply to the Everglades.

Athabasca Oil Sands, Canada

56.7N 111.4W

June 9th, 2009 Category: Snapshots

Canada - June 2nd, 2009

Canada - June 2nd, 2009

The Athabasca Oil Sands are large deposits of bitumen, or extremely heavy crude oil, located in northeastern Alberta, Canada – roughly centered around the boomtown of Fort McMurray.

These oil sands, hosted in the McMurray Formation, consist of a mixture of crude bitumen (a semi-solid form of crude oil), silica sand, clay minerals, and water.

The Athabasca deposit (also known colloquially as the Athabasca Tar Sands although there is no actual tar) is the largest reservoir of crude bitumen in the world. It is also the largest of three major oil sand deposits in Alberta, along with the nearby Peace River and Cold Lake deposits.

Together, these oil sand deposits lie under 141,000 square kilometres (54,000 sq mi) of sparsely populated boreal forest and muskeg (peat bogs) and contain about 1.7 trillion barrels (270×10^9 m3) of bitumen in-place, comparable in magnitude to the world’s total proven reserves of conventional petroleum.

With modern non-conventional oil production technology, at least 10% of these deposits, or about 170 billion barrels (27×10^9 m3) were considered to be economically recoverable at 2006 prices, making Canada’s total oil reserves the second largest in the world, after Saudi Arabia’s.

The Athabasca deposit is the only large oil sands reservoir in the world which is suitable for large-scale surface mining, although most of it can only be produced using more recently developed in-situ technology.

Lake Athabasca and Peace-Athabasca Delta, Canada

59.1N 109.8W

June 7th, 2009 Category: Lakes

Canada - June 2nd, 2009

Canada - June 2nd, 2009

The Peace-Athabasca Delta is a large freshwater, inland delta in northeastern Alberta, Canada. It is located where the Peace and Athabasca Rivers join the Slave River at the western end of Lake Athabasca.

Lake Athabasca, meaning “[where] there are plants one after another” in Woods Cree, is located in the northwest corner of Saskatchewan and the northeast corner of Alberta, Canada.

The lake covers 7,850 km2 (3,030 sq mi) and is 283 km (176 mi) long. It has a maximum width of 50 km (31 mi) and a maximum depth of 124 m (410 ft), and holds 204 km3 (49 cu mi) of water, making it the largest and deepest lake in both Alberta and Saskatchewan, and the eighth largest in Canada.