Artículo:

The Grand Managed Canyon

Autor:

MICHAEL E, LONG

PETER ESSICK

Resumen:

Glen Canyon Dam has long harnessed the mighty Colorado but environmentalists, biologists, and river runners still contest the benefits

Página:

114

Publicación:

National Geographic

Volúmen:

192

Número:

1

Periodo:

Julio 1997

ISSN:

00279358

SrcID:

00279358-1997-07.TXT