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This
map,
produced
by
the
United
States
Geological
Survey,
the
Geological
Survey
of
Canada
and
the
Mexican
Consejo
Recursos
de
Minerales,
combines
geology
and
topography
of
the
North
American
continent.
The
map,
woven
from
a
geologic
map
and
a
shaded
relief
image,
reveals
the
geologic
history
of
North
America
through
the
interrelation
of
rock
type,
topography
and
time
to
highlight
regional
surface
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The
Lewis
and
Clark
Expedition
was
the
first
of
many
government
surveys
of
natural
resources
in
the
American
West,
a
task
taken
over
in
later
years
by
the
United
States
Geological
Survey
(USGS).
The
discussion
includes
the
early
surveys
of
the
West
(by
King,
Powell,
Hayden,
and
Wheeler)
and
their
relation
to
the
USGS
mission.
There
is
also
a
page
devoted
to
scientific
discoveries
made
by
Lewis
and
...
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Choosing & Using this resource...
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This
portal
provides
access
to
maps,
aerial
photographs,
books,
booklets,
posters,
CDs,
digital
data,
and
satellite
imagery,
many
of
which
are
useful
for
teaching
about
Lewis
and
Clark.
These
resources
can
be
used
in
an
inquiry-based
setting
for
a
variety
of
courses
and
projects
at
the
elementary,
secondary,
and
university
levels.
In
addition,
the
USGS
hosts
Internet-based
resources
that
can
be
used
...
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This
report
describes
the
results
of
a
major
United
States
Geological
Survey
(USGS)
geologic
and
oceanographic
study
of
the
Gulf
of
the
Farallones,
adjacent
to
the
San
Francisco
Bay
region.
The
first
of
its
kind,
the
investigation
was
intended
to
establish
a
scientific
database
for
an
area
of
3,400
square
kilometers
(1,000
square
nautical
miles)
on
the
continental
shelf
for
the
purpose
of
evaluating
...
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This
virtual
tour
features
three-dimensional
images
from
the
United
States
Geological
Survey's
(USGS)
collection.
It
introduces
visitors
to
the
geology
and
landforms
of
Mojave
National
Preserve.
Views
include
cinder
cones,
layered
deposits
of
rhyolite
and
basalt
tuff,
and
the
Providence
Mountain
Range.
Visitors
can
also
see
high
desert
flora
(Joshua
trees),
limestone
caverns,
and
the
evaporite
deposits
...
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This portal provides links to an extensive selection of photo and image galleries available on United States Geological Survey (USGS) websites. It features a short list of highlighted sites, such as the Earth Science Photographic Archive and the 'Earth as Art' gallery. Other image sites are grouped by subject: biology, ecosystems, geology, geography, hydrology, and national parks.
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Choosing & Using this resource...
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This
portal
links
selected
United
States
Geological
Survey
(USGS)
online
resources
to
an
established
list
of
content
standards
for
the
state
of
California.
Standards
data
is
extracted
from
state
documents
'California
Content
Standards
for
California
Public
Schools:
Kindergarten
Through
Grade
Twelve'
with
consideration
of
'Science
Framework
for
California
Public
Schools:
Kindergarten
Through
Grade
...
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Choosing & Using this resource...
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This resource is part of :
This resource is included in the following collections:
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This
portal
provides
links
to
a
set
of
online
map
indexes
of
the
United
States
Geological
Survey
(USGS)
and
other
organizations
which
can
be
used
to
locate,
view,
or
create
maps.
For
teachers,
there
is
the
Education
Map
Catalog,
which
provides
access
to
several
hundred
of
the
most
useful
USGS
maps
for
teaching
and
learning,
organized
by
12
themes.
The
maps
are
available
in
a
wide
variety
of
scales
...
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Choosing & Using this resource...
Related resources and collections
This resource is part of :
This resource is included in the following collections:
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This
portal
provides
links
to
a
variety
of
information
on
the
United
States
Geological
Survey
(USGS).
There
is
a
brief
overview
of
the
USGS
mission
and
vision,
links
to
news
articles
and
press
releases,
and
a
link
to
frequently
asked
questions
and
a
page
where
users
can
post
their
own
questions.
Other
links
access
contact
information
for
various
departments
within
the
USGS,
a
search
engine
for
looking
...
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Choosing & Using this resource...
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This
portal
provides
links
to
selected
United
States
Geological
Survey
(USGS)
educational
resources
that
may
be
useful
to
educators
in
primary
school
grades.
Many
of
these
resources
can
be
used
directly
in
the
classroom,
as
preparation
for
lessons
or
demonstrations,
or
as
resources
for
teacher
education
and
curriculum
development.
Major
topic
areas
include
biology,
geography,
geology,
and
water
resources.
...
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Choosing & Using this resource...
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This resource is part of :
This resource is included in the following collections:
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