Yellowstone National Park and the surrounding mountainous region compr
ise the Greater Yellowstone Ecosystem (GYE), a 19 million acre area th
at is one of the few relatively intact ecosystems in the lower 48 stat
es. Conservationists believe that continuation of present land managem
ent practices in the region will disrupt the ecological integrity of t
he GYE. Many authors have identified and described these threats, but
as yet there has been no sustained effort to make sense of these threa
ts in the context of the ongoing dynamic policy debate. We develop the
foundation for such understanding by examining the implicit problem d
efinitions that have emerged from this debate. They fall into three ge
neral categories: 1) a scientific definition, 2) an economic definitio
n, and 3) a bureaucratic definition. This process produces an explorat
ory definition of the policy problem, which suggests a strategy for be
tter understanding and policy design. We propose several intervention
points at which substantive, one-the-ground improvements in the manage
ment of the GYE are possible.