Western Boundaries at www.japanese-home-gardens.com

Such surface currents produce the famous ocean "rivers," typified by the Gulf Stream and the Kuroshio Current at the western boundaries of the Atlantic and Pacific oceans, respectively. Driven by steady winds in one part of the ocean, these currents localize into narrow rivers at the western boundaries—again because of the earth's rotation but also because of the position of the continents. The currents are far from steady, for many eddies—currents in the opposite direction—have been discovered. Oceanographers have recently discovered countercurrents at great depths moving in directions opposite to their surface counterparts.

The most famous park in the whole Rocky Mountain System is Yellowstone Park (q.y.) in Wyoming, now a government reservation. The ranges on the boundaries of the Parks and rising from the Park Valleys, are grouped together as the Park Ranges or Park System. The mountains so designated are bounded on the north by the Laramie Plains, and on the east by the Great Plains. The southern and western boundaries are indefinite. Other noted parks are Monumental Park and the Garden of the Gods, near Colorado Springs. The 500 acres are covered with an extraordinary rock formation, like giant spires and pillars, and some like vast cathedrals. The Yosemite Valley (q.v.) is often classed with the Parks.

WITH GARDENS a sense of enclosure is important. On small lots the boundaries may be those of the property or even plantings or other pleasant features on a neighbor's property, for when I speak of boundaries I mean not those of the lot but those that limit the view. On larger grounds the boundaries to views may be well within the property lines.