Trail

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Trail,

city (1991 pop. 7,919), SE British Columbia, Canada, on the Columbia River just N of the Wash. border. It is a metal-smelting center for a mining area that produces lead, zinc, silver, and gold. Sulfuric acid and fertilizers are manufactured there.

Trail

 

a city in Canada, in the southern part of the province of British Columbia. Population, 11,100 (1971). Trail is a center for the extraction and processing of complex ores. It has a large smelting combine that produces one-half of Canada’s smelted zinc and two-thirds of the country’s smelted lead; antimony and other metals are smelted as well. Trail also produces chemicals.

trail

[trāl]
(astronomy)
A luminous trace left in the sky by the passage of a large meteor.
(geology)
A line of rock fragments that were picked up by glacial ice at a localized outcropping and left scattered along a fairly well-defined tract during the movement of a glacier.
(graphic arts)
One of the lines left on a photographic plate during prolonged exposure to starlight if the motion of the plate was not synchronized with the apparent motion of the sky.
(ordnance)
In bombing, the line between the point of impact of the bomb and a point on the ground directly beneath the aircraft at the moment of impact, assuming that the aircraft stays on course after release of the bomb and maintains a constant speed.
Rear part of a gun carriage which connects the piece with a limber or tractor.

trail

1. the scent left by a moving person or animal that is followed by a hunting animal
2. Engineering the distance between the point of contact of a steerable wheel and a line drawn from the swivel pin axis to the ground
References in periodicals archive ?
Guarding all gates to the mountain's apex is a challenge because of numerous secret foot trails.
In the Apollo 17 image, the foot trails, including the last path made on the moon by humans, are easily distinguished from the dual tracks left by the lunar rover, which remains parked east of the lander.
The mountain is 3,165 feet high, with more than 40 miles of maintained foot trails.
STRAP on your boots to explore some of the South West's most spectacular landscapes when you follow Foot Trails through Wiltshire, Dorset and Somerset.
It also connects our widely scattered collections with foot trails and interpretive nodes where a continuously running tram would make stops.
The district will set ground rules for all future development, including lot sizes, equestrian access, foot trails and business signs, Lewis said.
2-acre slice of property where 30 triplexes would be built sits across from hundreds of acres of open space crisscrossed by horse and foot trails near the Santa Susana Mountains as well as the freeway.
At that time, Congress provided for approval of legitimate rights-of-way that were established prior to 1976, but under Stevens' original rider, anything from foot trails to the grid lines on a map could have been claimed as routes and transformed into paved highways.
As time and money become available, the Forest Service will build foot trails in the National Forest and install directional and informational signs.
nonprofit group dedicated to establishing, protecting and maintaining foot trails that organizes National Trails Day.