Yellowstone
was
the
first
national
park
in
the
____________________
.
About
____________________
percent
of
the
park
is
in
____________________
.
Three
percent
is
in
____________________
and
only
one
percent
in
____________________
.
Yellowstone
National
Park
is
famous
for
its
____________________
and
hot
springs
.
The
park
contains
about
half
the
world's
geysers
.
It
is
also
a
home
to
grizzly
____________________
,
wolves
,
bison
and
elk
.
Many
____________________
visit
the
park
each
year
to
see
the
geysers
and
animals
there
.
Its
most
famous
geyser
is
the
Old
____________________
:
its
eruptions
last
from
1
to
5
____________________
.
The
average
____________________
of
an
eruption
is
44
m
.
Yellowstone
was
made
a
UNESCO
World
Heritage
Site
in
____________________
.
Yellowstone
is
still
a
geologically
active
____________________
;
what
means
that
a
eruption
is
expected
in
____________________
.
