Cache LA Poudre: The Natural History of a Rocky Mountain by Howard Ensign Evans

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By Howard Ensign Evans

The Cache los angeles Poudre River and its tributaries circulate in the course of the significant towns of north imperative Colorado. In 1986, a huge component to the pristine Cache los angeles Poudre and its south fork have been additional to the federal Wild and Scenic River approach, the 1st river in Colorado to be included.

With its eloquent and sometimes poetic kind, Cache l. a. Poudre explains the normal historical past of the river basin starting within the tundra of Rocky Mountain nationwide Park and tracing the river 80 miles via numerous existence zones sooner than becoming a member of the South Platte simply east of Greeley.

Arguing convincingly a philosophy of ecological accountability, the authors inform this tale with outstanding knowledge of the balances in nature and the influence of human intrusion. beautiful aspect is paid to vegetation and animals: descriptions of the complicated meanings of birds’ songs, the sexual ritual of bugs, and the struggles among predators and prey elicit bright visualization and a thrilling feel of discovery.

An attractive and academic magazine of 2 modern day explorers, Cache l. a. Poudre might subscribe to the ranks of a few of the easiest environmental books written, together with works via Enos turbines, John Muir, Aldo Leopold, and Wendell Berry.

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Extra resources for Cache LA Poudre: The Natural History of a Rocky Mountain River

Sample text

Some People of the Poudre 191 10. The Cache la Poudre Today 219 References 245 Index 251 Page vii Preface On a map of North America, the Cache la Poudre River is but a wisp of a line running from the mountains of northern Colorado to the South Platte River. Even close up, it passes as a river only by the standards of the semiarid West. Yet it is the lifeline of the cities of Fort Collins and Greeley and of several other settlements within its watershed. And it is a perennial joy to those who like to fish, hunt, raft, hike, or simply seek in nature something they have lost in the mad scramble of the times.

No sooner does the stream leave the lake than it is joined by other streams entering the valley from either side. The forests extend upward along the valley slopes for only about half a mile, terminating at treeline, about 11,300 feet elevation. Above this is alpine tundra, the ultimate source of much of the Poudre's water, a land without trees and tall bushes, subject to freezing temperatures and snow for eight or nine months of the year and still containing melting snowbanks by the time of the first snows of September.

The largest glacier in what is now Rocky Mountain National Park was formed in the valley of the Colorado River. This huge river of ice, twenty miles long from its head at La Poudre Pass to the area west of the park where Shadow Mountain Reservoir is now located, overflowed eastward across Milner Pass into the valley of the Poudre. Thus the pass was flattened, a lake bed gouged out, and the highest valley of the Poudre, at its headwaters, is wide and flat, in contrast to most alpine valleys, which are deep and V-shaped.

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