paragraph_text: Although the centre and the eastern parts of the country are mostly flat, the west is mountainous. Both the Andes and Sierras Pampeanas affect the climate of Argentina, leading to differences in temperature, pressure, and spatial distribution of precipitation depending on the topography and altitude. Here, the Andes exert an important influence on the climate. Owing to the higher altitudes of the Andes north of 40 S, they completely block the normal westerly flow, preventing low pressure systems containing moisture from the Pacific Ocean from coming in. Thus, much of Argentina north of 40 S is dominated by wind circulation patterns from the South Atlantic High. South of 40 S, the Andes are lower in altitude, allowing much of Patagonia to be dominated by westerly winds and air masses from the Pacific Ocean. However, the north -- south orientation of the Andes creates a barrier for humid air masses originating from the Pacific Ocean. This is because they force these air masses upwards, cooling adiabactically. Most of the moisture is dropped on the Chilean side, causing abundant precipitation and cloudiness while on the Argentine side, the air warms adiabatically, causing it to become drier as it descends. Thus, an extensive rain -- shadow is present in much of Patagonia, causing it to receive very little precipitation. The Sierras Pampeanas influences the climate on a much smaller scale than the Andes.

paragraph_text: The Driftwood Range is a small subrange of the Skeena Mountains of the Interior Mountains, located between the headwaters of Driftwood River and Nilkitkwa River in northern British Columbia, Canada.

paragraph_text: The Salloomt River is a river in the Bella Coola Valley of the Central Coast region of British Columbia, Canada. It is a tributary of the Bella Coola River, flowing southwest out of the southernmost Kitimat Ranges to meet that river just upstream from the community of Hagensborg.

paragraph_text: Allen is a city in the province of Río Negro, Argentina. It has 26,083 inhabitants as per the . It is located on the left-hand (northern) side of the Alto Valle of the Río Negro, near its beginning in the confluence of the Neuquén and Limay rivers, about west of General Roca and east of Neuquén.

paragraph_text: There is an average of forty - five inches of rain a year (fifty in the mountains). July storms account for much of this precipitation. As much as 15% of the rainfall during the warm season in the Carolinas can be attributed to tropical cyclones. Mountains usually see some snow in the fall and winter. Moist winds from the southwest drop an average of 80 inches (2,000 mm) of precipitation on the western side of the mountains, while the northeast - facing slopes average less than half that amount.

paragraph_text: The Blaeberry River is a tributary of the Columbia River in the Columbia Country of British Columbia, Canada, rising in the Canadian Rockies on the south side of Howse Pass and joining the Columbia midway between the town of Golden, at the confluence of the Kicking Horse River, and the east foot of the Rogers Pass, at the head of Kinbasket Lake and the mouth of the Beaver River. Its length is about .

paragraph_text: Tropical and equatorial air masses are hot as they develop over lower latitudes. Those that develop over land (continental) are drier and hotter than those that develop over oceans, and travel poleward on the western periphery of the subtropical ridge. Maritime tropical air masses are sometimes referred to as trade air masses. Monsoon air masses are moist and unstable. Superior air masses are dry, and rarely reach the ground. They normally reside over maritime tropical air masses, forming a warmer and drier layer over the more moderate moist air mass below, forming what is known as a trade wind inversion over the maritime tropical air mass. Continental Polar air masses (cP) are air masses that are cold and dry due to their continental source region. Continental polar air masses that affect North America form over interior Canada. Continental Tropical air masses (cT) are a type of tropical air produced by the subtropical ridge over large areas of land and typically originate from low - latitude deserts such as the Sahara Desert in northern Africa, which is the major source of these air masses. Other less important sources producing cT air masses are the Arabian Peninsula, the central arid / semi-arid part of Australia and deserts lying in the Southwestern United States. Continental tropical air masses are extremely hot and dry.

paragraph_text: The Esmeraldas River is a 210 kilometers (130 miles) river in northwestern Ecuador that flows into the Pacific Ocean at the city of Esmeraldas. Among its tributaries is the Guayllabamba River which drains Quito. Charles Marie de la Condamine sailed up it and then climbed the Andes Mountains when on the Ecuadorian Expedition that left France in May 1735.

paragraph_text: The Malton Range is a mountain range in southeastern British Columbia, Canada, located southwest of the Canoe Reach of Kinbasket Lake and east of the Albreda River, north of Dominion Mountain. It has an area of 451 km and is a subrange of the Monashee Mountains which in turn form part of the Columbia Mountains.

paragraph_text: The Spokane River is a tributary of the Columbia River, approximately long, in northern Idaho and eastern Washington in the United States. It drains a low mountainous area east of the Columbia, passing through the Spokane Valley and the city of Spokane, Washington.

paragraph_text: The Big Bend Ranges are a subrange of the Selkirk Mountains of the Columbia Mountains in southeastern British Columbia, Canada, located in Big Bend of the Columbia River north of the Illecillewaet River.

paragraph_text: Taylor Pass is a mountain pass in the Chilcotin Ranges of the Coast Mountains of British Columbia, Canada, located at the divide between the headwaters of the Taseko River and those of Gun Creek, a tributary of the Bridge River.

paragraph_text: The Columbia Bar, also frequently called the Columbia River Bar, is a system of bars and shoals at the mouth of the Columbia River spanning the U.S. states of Oregon and Washington. The bar is about 3 miles (5 km) wide and 6 miles (10 km) long.

paragraph_text: The Andes or Andean Mountains (Spanish: Cordillera de los Andes) are the longest continental mountain range in the world. They form a continuous highland along the western edge of South America. This range is about 7,000 km (4,300 mi) long, about 200 to 700 km (120 to 430 mi) wide (widest between 18 ° south and 20 ° south latitude), and of an average height of about 4,000 m (13,000 ft). The Andes extend from north to south through seven South American countries: Venezuela, Colombia, Ecuador, Peru, Bolivia, Chile and Argentina.

paragraph_text: The Bulkley Ranges is mountain range in northern British Columbia, Canada, located between the Skeena and Bulkley Rivers south of Hazelton, north of the Morice River and Zymoetz River. It has an area of 7851 km and is a subrange of the Hazelton Mountains which in turn form part of the Interior Mountains.

paragraph_text: The Balkan mountains run laterally through the middle of the country. The mountainous southwest has two distinct alpine ranges—Rila and Pirin, which border the lower but more extensive Rhodope Mountains to the east. Musala, at 2,925 metres (9,596 ft), is the highest point in both Bulgaria and the Balkan peninsula, and the Black Sea coast is the country's lowest point. Plains occupy about one third of the territory, while plateaux and hills occupy 41%. Most rivers are short and with low water levels. The longest river located solely in Bulgarian territory, the Iskar, has a length of 368 kilometres (229 mi). Other major rivers include the Struma and the Maritsa in the south.Bulgaria has a changeable climate, which results from being positioned at the meeting point of the Mediterranean and continental air masses combined with the barrier effect of its mountains. Northern Bulgaria averages 1 °C (1.8 °F) cooler, and registers 200 millimetres (7.9 in) more precipitation, than the regions south of the Balkan mountains. Temperature amplitudes vary significantly in different areas. The lowest recorded temperature is −38.3 °C (−36.9 °F), while the highest is 45.2 °C (113.4 °F). Precipitation averages about 630 millimetres (24.8 in) per year, and varies from 500 millimetres (19.7 in) in Dobrudja to more than 2,500 millimetres (98.4 in) in the mountains. Continental air masses bring significant amounts of snowfall during winter.

paragraph_text: The Sawtooth Range is a small mountain range in southeastern Alaska, United States, located just southwest of Warm Pass and on the north side of the East Fork of the Skagway River. It has an area of 97 km and is a subrange of the Boundary Ranges which in turn form part of the Coast Mountains.

paragraph_text: The Slamgeesh Range is a small subrange of the Skeena Mountains of the Interior Mountains, located between the Skeena River and Slamgeesh River in northern British Columbia, Canada.

paragraph_text: The Klappan Range is a small subrange of the Skeena Mountains of the Interior Mountains, located between Klappan River and Iskut River in northern British Columbia, Canada.

paragraph_text: The Ratchford Range is a subrange of the Monashee Mountains of the Columbia Mountains, located east of the Seymour River in British Columbia, Canada.

Question: Where does the Columbia River meet the ocean where the warm moist air mass over the Andes comes from, in the country where the city of Allen is located?
Answer: Columbia Bar