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Philips Point (Sonora)
Philips Point was a promontory on the north east bank of the Colorado River in Sonora, Mexico, that marked the mouth of the tidal estuary of the Colorado River in the later 19th century. :"Philips Point may be regarded as the head of deep-water navigation in the Colorado River. At Philips Point spring tides rise 25 to 30 feet, and neap tides from 16 to 20 feet. At a short distance above Philips Point, the spring tide comes in with a bore or bank of water 4 feet high, extending in one huge breaker clear across the river, while the ebb is still running out. The influence of the tide in the Colorado River is felt for about 40 miles up the river, a few miles above Heintzelman's Point." History In the mid-19th century, Philips Point also marked the minor southeastern trending distributary channel of the Colorado River. It was divided from the western main channel of the river and the Gulf of California by Montague Island and Gore Island. It was the deep waters of this side channel a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Promontory
A promontory is a raised mass of land that projects into a lowland or a body of water (in which case it is a peninsula). Most promontories either are formed from a hard ridge of rock that has resisted the erosive forces that have removed the softer rock to the sides of it, or are the high ground that remains between two river valleys where they form a confluence. One type of promontory is a headland, or head. Promontories in history Located at the edge of a landmass, promontories offer a natural defense against enemies, as they are often surrounded by water and difficult to access. Many ancient and modern forts and castles have been built on promontories for this reason. One of the most famous examples of promontory forts is the Citadel of Namur in Belgium. Located at the confluence of the Meuse and Sambre rivers, the citadel has been a prime fortified location since the 10th century. The surrounding rivers act as a natural moat, making it difficult for enemies to access ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Colorado River
The Colorado River () is one of the principal rivers (along with the Rio Grande) in the Southwestern United States and in northern Mexico. The river, the List of longest rivers of the United States (by main stem), 5th longest in the United States, drains an expansive, arid drainage basin, watershed that encompasses parts of seven U.S. states and two Mexican states. The name Colorado derives from the Spanish language for "colored reddish" due to its heavy silt load. Starting in the central Rocky Mountains of Colorado, it flows generally southwest across the Colorado Plateau and through the Grand Canyon before reaching Lake Mead on the Arizona–Nevada border, where it turns south toward the Mexico–United States border, international border. After entering Mexico, the Colorado approaches the mostly dry Colorado River Delta at the tip of the Gulf of California between Baja California and Sonora. Known for its dramatic canyons, whitewater rapids, and eleven National parks of the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sonora, Mexico
Sonora (), officially Estado Libre y Soberano de Sonora (), is one of the 31 states which, along with Mexico City, comprise the Federal Entities of Mexico. The state is divided into 72 municipalities; the capital (and largest) city of which is Hermosillo, located in the center of the state. Other large cities include Ciudad Obregón, Nogales (on the Mexico-United States border), San Luis Río Colorado, and Navojoa. Sonora is bordered by the states of Chihuahua to the east, Baja California to the west (of the north portion) and Sinaloa to the southeast. To the north, it shares a border with the United States, and on the southwest has a significant share of the coastline of the Gulf of California. Sonora's natural geography is divided into three parts: the Sierra Madre Occidental in the east of the state; plains and rolling hills in the center; and the coast on the Gulf of California. It is primarily arid or semiarid deserts and grasslands, with only the highest elevation ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Estuary
An estuary is a partially enclosed coastal body of brackish water with one or more rivers or streams flowing into it, and with a free connection to the open sea. Estuaries form a transition zone between river environments and maritime environments and are an example of an ecotone. Estuaries are subject both to marine influences such as tides, waves, and the influx of saline water, and to fluvial influences such as flows of freshwater and sediment. The mixing of seawater and freshwater provides high levels of nutrients both in the water column and in sediment, making estuaries among the most productive natural habitats in the world. Most existing estuaries formed during the Holocene epoch with the flooding of river-eroded or glacially scoured valleys when the sea level began to rise about 10,000–12,000 years ago. Estuaries are typically classified according to their geomorphological features or to water-circulation patterns. They can have many different names, such as ba ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tidal Bore
A tidal bore, often simply given as bore in context, is a tidal phenomenon in which the leading edge of the incoming tide forms a wave (or waves) of water that travels up a river or narrow bay, reversing the direction of the river or bay's current. It is a strong tide that pushes up the river, against the current. Description Bores occur in relatively few locations worldwide, usually in areas with a large tidal range (typically more than between high and low tide) and where incoming tides are funneled into a shallow, narrowing river or lake via a broad bay. The funnel-like shape not only increases the tidal range, but it can also decrease the duration of the flood tide, down to a point where the flood appears as a sudden increase in the water level. A tidal bore takes place during the flood tide and never during the ebb tide. A tidal bore may take on various forms, ranging from a single breaking wavefront with a somewhat like a hydraulic jumpto undular bores, compr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Heintzelman's Point
Heintzelman's Point, a sharp bend in the Colorado River, 47 miles from the mouth of the Colorado River at the top of the influence of the tide in the estuary of the Colorado River Delta during the 19th century, in Sonora, Mexico. History Heintzelman's Point was named after Major Samuel P. Heintzelman who was in command of Fort Yuma at the time the name was given to the point during the first expedition to bring supplies up the river by Lieutenant George Derby with the schooner A schooner ( ) is a type of sailing ship, sailing vessel defined by its Rig (sailing), rig: fore-and-aft rigged on all of two or more Mast (sailing), masts and, in the case of a two-masted schooner, the foremast generally being shorter than t ..., ''Invincible''. Derby attempting to ascend the river in his longboat met the Major descending the Colorado in his boat at the point. References {{reflist Colorado River History of Sonora Lower Colorado River Valley ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gulf Of California
The Gulf of California (), also known as the Sea of Cortés (''Mar de Cortés'') or Sea of Cortez, or less commonly as the Vermilion Sea (''Mar Vermejo''), is a marginal sea of the Pacific Ocean that separates the Baja California peninsula from the Mexico, Mexican mainland. It is bordered by the states of Baja California, Baja California Sur, Sonora, and Sinaloa with a coastline of approximately . Rivers that flow into the Gulf of California include the Colorado River, Colorado, Fuerte River, Fuerte, Mayo River (Mexico), Mayo, Sinaloa River, Sinaloa, Sonora River, Sonora, and the Yaqui River, Yaqui. The surface of the gulf is about . Maximum depths exceed because of the complex geology, linked to plate tectonics. The gulf is thought to be one of the most diverse seas on Earth and is home to more than 5,000 species of micro-invertebrates. Parts of the Gulf of California are a UNESCO World Heritage Site. Geography History The marine expeditions of Fortún Ximénez, Hernán Cort ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Montague Island (Baja California)
Montague Island, known in Spanish as Isla Montague, is an island at the mouth of the Colorado River in the municipality of Mexicali, Baja California, Mexico, and is part of the Colorado River Delta and part of a broader region called the Salton Trough. It is about in length along its longest axis.The Delta of the Colorado River David L. Alles (ed.), Western Washington University, August 6, 2006. The Colorado River Delta region experiences some of the highest tidal ranges in the world, up to , and at the highest tides, Montague Island is completely inundated. Although the islands in the delta have changed much over time, a map of the region shows Montague Island in 1873. The island is uninhabited, as the climate is very hot, arid and the area occasionally floods. The nearest inhabited tow ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gore Island (Sonora)
Gore Island, or Isla Gore, is an island in the Colorado River Delta within the state of Baja California, Mexico. It lies between two dis-tributary channels east of the main channel of the Colorado River and Montague Island that flow southeastward into the Gulf of California The Gulf of California (), also known as the Sea of Cortés (''Mar de Cortés'') or Sea of Cortez, or less commonly as the Vermilion Sea (''Mar Vermejo''), is a marginal sea of the Pacific Ocean that separates the Baja California peninsula from ..., southeast of the mainland of Baja California Peninsula. References Islands of the Colorado River Islands of Mexicali Municipality Islands of the Gulf of California Lower Colorado River Valley Islands of Baja California Nature reserves in Mexico {{BajaCalifornia-geo-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Port Isabel Slough
Port Isabel Slough was a deep slough in the Colorado River Delta near the mouth of the Colorado River during the 19th century, within the state of Sonora, Mexico. History Until the Great Flood of 1862, what became Port Isabel Slough was a shallow tidewater slough, but the extreme flood waters of that year cut its channel much deeper, so that at low tide it still was three fathoms deep. The mouth of this slough was only 5 miles from the mouth of the river and 2 miles east of the main river at Philips Point, in the 1870s located at , marking the head of the eastern dis-tributary channel of the Colorado, separated by from the main river and the Gulf of California by Montague Island and Gore Island. The slough was sheltered from the extremes of the tidal bore of the Colorado River and deep enough to prevent stranding on shoals or mud flats at low tide. This made it an ideal anchorage for maritime craft to load and unload their cargo and passengers from the steamboats that took the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Port Isabel, Sonora
Port Isabel was a seaport established on Port Isabel Slough in 1865 during the American Civil War in Sonora, Mexico in the mouth of the Colorado River on the Gulf of California. It was founded to support the increased river traffic caused by the gold rush that began in 1862 on the Colorado River and the Yuma Quartermaster Depot newly established in 1864 to support the Army posts in the Arizona Military District. The slough was discovered in 1865 by the Captain W. H. Pierson of the schooner ''Isabel'', that first used the slough to transfer its cargo to steamboats safe from the tidal bore of the Colorado River. Shortly afterward Port Isabel was established 3 miles up the slough and replaced Robinson's Landing as the place where cargo was unloaded in the river from seagoing craft on to flat bottomed steamboats of the Colorado River and carried up to Fort Yuma and points further north on the river. By 1867, Port Isabel, was situated on Port Isabel Slough whose mouth lay to the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Colorado Steam Navigation Company
Colorado is a state in the Western United States. It is one of the Mountain states, sharing the Four Corners region with Arizona, New Mexico, and Utah. It is also bordered by Wyoming to the north, Nebraska to the northeast, Kansas to the east, and Oklahoma to the southeast. Colorado is noted for its landscape of mountains, forests, high plains, mesas, canyons, plateaus, rivers, and desert lands. It encompasses most of the Southern Rocky Mountains, as well as the northeastern portion of the Colorado Plateau and the western edge of the Great Plains. Colorado is the eighth-largest U.S. state by area and the 21st by population. The United States Census Bureau estimated the population of Colorado to be 5,957,493 as of July 1, 2024, a 3.2% increase from the 2020 United States census. The region has been inhabited by Native Americans and their ancestors for at least 13,500 years and possibly much longer. The eastern edge of the Rocky Mountains was a major migration route for earl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
