Blue Mountains Ecoregion: Chapter 16 in <i>Status and trends of land change in the Western United States--1973 to 2000</i>

Soulard, Christopher E.

Abstract:

The Blue Mountains Ecoregion encompasses approximately 65,461 km² (25,275 mi²) of land bordered on the north by the Columbia Plateau Ecoregion, on the east by the Northern Rockies Ecoregion, on the south by the Snake River Basin and the Northern Basin and Range Ecoregions, and on the west by the Cascades and the Eastern Cascades Slopes and Foothills Ecoregions (fig. 1) (Omernik, 1987; U.S. Environmental Protection Agency, 1997). Most of the Blue Mountains Ecoregion is located within Oregon (83.5 percent); 13.8 percent is in Idaho, and 2.7 percent is in Washington. The Blue Mountains are composed of primarily Paleozoic volcanic rocks, with minor sedimentary, metamorphic, and granitic rocks. Lower mountains and numerous basin-and-range areas, as well as the lack of Quaternary-age volcanoes, distinguish the Blue Mountains from the adjacent Cascade Range (Thorson and others, 2003).

Genre:

USGS Numbered Series

ProdID:

70042606

Citation Author:

Soulard, Christopher E.

Citation Contributing Office:

Western Geographic Science Center

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Citation End Page:

177

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Citation Language:

English

Citation Larger Work Title:

Status and trends of land change in the Western United States--1973 to 2000: Volume A in Status and trends of land change in the United States--1973 to 2000 (PP 1794-A)

Citation LatN:

46.5

Citation LatS:

43.5

Citation LonE:

-116.0

Citation LonW:

-121.5

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Citation Phsyical Description:

Chapter 16: 9 p.

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Citation Public Comments:

This publication is Chapter 16 in Status and trends of land change in the Western United States--1973 to 2000, which is Volume A in Status and trends of land change in the United States--1973 to 2000, PP 1794. Volume A consists of 30 chapters. For access to other chapters, please visit PP 1794-A.

Citation Publisher:

U.S. Geological Survey

Citation Series:

Professional Paper

Citation Series Code:

Citation Series Number:

1794-A-16

Citation Search Results Text:

Blue Mountains Ecoregion: Chapter 16 in Status and trends of land change in the Western United States--1973 to 2000; 2012; PP; 1794-A-16; Status and trends of land change in the Western United States--1973 to 2000: Volume A in Status and trends of land change in the United States--1973 to 2000 (PP 1794-A); Soulard, Christopher E.