A boat is a watercraft of a large range of types and sizes, but generally smaller than a ship, which is distinguished by its larger size or capacity, its shape, or its ability to carry boats.
Ochroma pyramidale, commonly known as the balsa tree, is a large, fast-growing tree native to the Americas. It is the sole member of the genus Ochroma. The tree is famous for its wide usage in woodworking, due to its softness and its high strength compared to its low density. The name balsa is the Spanish word for "raft."
The Wisconsin River is a tributary of the Mississippi River in the U.S. state of Wisconsin. At approximately 430 miles long, it is the state's longest river. The river's name was first recorded in 1673 by Jacques Marquette as "Meskousing" from his Indian guides - most likely Miami for "river running through a red place."
The Kon-Tiki expedition was a 1947 journey by raft across the Pacific Ocean from South America to the Polynesian islands, led by Norwegian explorer and writer Thor Heyerdahl. The raft was named Kon-Tiki after the Inca god Viracocha, for whom "Kon-Tiki" was said to be an old name. Heyerdal's book on the expedition was entitled The Kon-Tiki Expedition: By Raft Across the South Seas. A 1950 documentary film won the Academy Award for Best Documentary Feature. A 2012 dramatized feature film was nominated for the Academy Award for Best Foreign Language Film.
A pontoon bridge, also known as a floating bridge, uses floats or shallow-draft boats to support a continuous deck for pedestrian and vehicle travel. The buoyancy of the supports limits the maximum load that they can carry.
The Pee Dee River, also known as the Great Pee Dee River, is a river in the Carolinas of the United States. It originates in the Appalachian Mountains in North Carolina, where its upper course, above the mouth of the Uwharrie River, is known as the Yadkin River. The river empties into Winyah Bay, and then into the Atlantic Ocean near Georgetown.
An inflatable boat is a lightweight boat constructed with its sides and bow made of flexible tubes containing pressurised gas. For smaller boats, the floor and hull are often flexible, while for boats longer than 3 metres (9.8 ft), the floor typically consists of three to five rigid plywood or aluminium sheets fixed between the tubes, but not joined rigidly together. Often the transom is rigid, providing a location and structure for mounting an outboard motor.
The Chippewa River in Wisconsin flows approximately 183 miles (294 km) through west-central and northwestern Wisconsin. It was once navigable for approximately 50 miles (80 km) of its length, from the Mississippi River, by Durand, northeast to Eau Claire. Its catchment defines a portion of the northern boundary of the Driftless Area. The river is easily accessible for bikers and pleasure seekers via the Chippewa River State Trail, which follows the river from Eau Claire to Durand.
The Chincha culture was the culture of a Native Peruvian people living near the Pacific Ocean in south west Peru. The Chincha Kingdom and their culture flourished in the Late Intermediate Period, also known as the regional states period of pre-Columbian Peru. They became part of the Inca Empire around 1480. They were prominent as sea-going traders and lived in a large and fertile oasis valley. La Centinela is an archaeological ruin associated with the Chincha. It is located near the present-day city of Chincha Alta.
Timber rafting is a method of transporting felled tree trunks by tying them together to make rafts, which are then drifted or pulled downriver, or across a lake or other body of water. It is arguably, after log driving, the second cheapest means of transporting felled timber. Both methods may be referred to as timber floating. The tradition of timber rafting cultivated in Austria, the Czech Republic, Germany, Latvia, Poland and Spain was inscribed on UNESCO Representative List of the Intangible Cultural Heritage of Humanity in 2022
The Black River is a river in west-central Wisconsin and a tributary of the Mississippi River. The river is approximately 190 miles (310 km) long. During the 19th century, pine logs were rafted down the Black, heading for sawmills at La Crosse and points beyond.
In early periods of North American industrial development, an ark was a temporary boat used for river transport in eastern North America before slack-water canals and railroads made them obsolete. Because they could be built using relatively crude hand tools, arks were built in American colonial and early republic times, primarily to carry cargo downriver on the spring freshets, and especially to carry milled lumber, charcoal and other forest products and bulk agricultural produce to a city or a port downriver. While logs were often tied into rafts, on long trips which could take weeks, the rafts would be accompanied by such arks as crew support quarters. Deep rivers allowed large log arks as described below instead of less controllable rafts. Since by 1800, most eastern towns and cities were short on heating fuels, even badly processed timber or planks could readily be sold at the destinations.
A splash dam was a temporary wooden dam used to raise the water level in streams to float logs downstream to sawmills. By impounding water and allowing it to be released on the log drive's schedule, these dams allowed many more logs to be brought to market than the natural flow of the stream allowed. Water releases from multiple splash dams on tributaries were also often combined to maximize the number of logs floated throughout a given watershed.
A forest railway, forest tram, timber line, logging railway or logging railroad is a mode of railway transport which is used for forestry tasks, primarily the transportation of felled logs to sawmills or railway stations.
Reed boats and rafts, along with dugout canoes and other rafts, are among the oldest known types of boats. Often used as traditional fishing boats, they are still used in a few places around the world, though they have generally been replaced with planked boats. Reed boats can be distinguished from reed rafts, since reed boats are usually waterproofed with some form of tar. As well as boats and rafts, small floating islands have also been constructed from reeds.
Pine Creek Gorge, sometimes called The Grand Canyon of Pennsylvania, is a 47-mile (76 km) gorge carved into the Allegheny Plateau by Pine Creek in north-central Pennsylvania.
The Ottawa River timber trade, also known as the Ottawa Valley timber trade or Ottawa River lumber trade, was the nineteenth century production of wood products by Canada on areas of the Ottawa River and the regions of the Ottawa Valley and western Quebec, destined for British and American markets. It was the major industry of the historical colonies of Upper Canada and Lower Canada and it created an entrepreneur known as a lumber baron. The trade in squared timber and later sawed lumber led to population growth and prosperity to communities in the Ottawa Valley, especially the city of Bytown. The product was chiefly red and white pine.The Ottawa River being conveniently located with access via the St. Lawrence River, was a valuable region due to its great pine forests surpassing any others nearby. The industry lasted until around 1900 as both markets and supplies decreased, it was then reoriented to the production of wood pulp which continued until the late 1990s and early 2000s.
Grandfather Falls is the highest waterfall on the Wisconsin River. The total drop is 89 feet, spread out in a series of cascades over about one mile. The upper third of the falls and most of the flow, except in the spring, is diverted through a canal and a series of penstocks to feed hydroelectric generators. Grandfather Falls dam and power generating facility is owned and operated by Wisconsin Public Service Corporation.
Between 1966 and 1973, Spanish explorer Vital Alsar led three expeditions to cross the Pacific Ocean by raft – La Pacífica in 1966, La Balsa in 1970 and Las Balsas in 1973. Travelling from Ecuador, South America, to Australia, the first expedition failed, but the second and third succeeded, both setting the record for the longest known raft voyages in history – 8,600 miles (13,800 km) and 9,000 miles (14,000 km) respectively.
Pre-Columbian rafts plied the Pacific Coast of South America for trade from about 100 BCE, and possibly much earlier. The 16th-century descriptions by the Spanish of the rafts used by Native Americans along the seacoasts of Peru and Ecuador has incited speculation about the seamanship of the Indians, the seaworthiness of their rafts, and the possibility that they undertook long ocean-going voyages. None of the prehistoric rafts have survived and the exact characteristics of their construction and the geographical extent of their voyages are uncertain.
Three Arks for a log drive on Pine Creek, in Lycoming or Tioga County, Pennsylvania. The left ark was for cooking and dining, the middle ark was the sleeping quarters and the right ark was for the horses. The arks were built for just one log drive and then sold for their lumber. The line of the Jersey Shore, Pine Creek and Buffalo Railway can be seen on the eastern shore: the mountainside behind it is nearly bare of trees from clearcutting. [4]
Raft carrying visitors to Tom Sawyer Island at Disneyland, about 1960
People on the raft in Estonia, 1944
Raft used to ferry vehicles at Citarum River, Karawang, West Java, Indonesia
Rafting on the Dunajec River at Pieniny, about 2005–2010
A woman using a raft to transport her daughter and goats
