Worksheet PG-1
Name _____________________
Open Activity 1: The Continental Divide (the internet link says:
Activities PG-1, PG-2, and PG-3)
1. The Continental Divide is an imaginary line that follows the highest
points of the mountains. All the rivers on the west side of the Divide
flow toward the Pacific Ocean and all the rivers on the east side of
the Divide flow toward the Atlantic Ocean. Looking at this map of
Colorado’s major rivers and some cities, predict where the
Continental Divide is. Draw a red dotted line to show your prediction
on the map below.
Why did you predict this location?
_______________________________________________________
_______________________________________________________
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2. Make Visible the Mountains layer and then Refresh Map. Does
this information change your prediction? ____ If so, draw a new
red dotted line on the map below.
Why did you predict this new location?
_______________________________________________________
_______________________________________________________
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3. Make Visible the Continental Divide layer to check your
prediction. On the map below, shade the eastern slope yellow and
the western slope green. Put a blue dot where you think your
community is. Do you think you live on the eastern or western slope?
_______________
4. Make Visible AND Active the Communities layer. Refresh Map.
Select “Query” (the button with a red “?”). Under “Field” select Name.
Under “Value” type in the name of your community. Click on “Add to
Query String.” Click “on Execute.” Your community will show up as a
yellow dot.
5. Put a yellow dot on the map above to show your community’s
location. Were you correct about your prediction of being on the
eastern or western slope? _______________________
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6. Turn off ALL layers. Then Make Visible the Western States,
Continental Divide, and Western Rivers layers. Refresh Map AND
then click the
Zoom to Full Extent button. You should see a map
like the one below. Colorado is one state in the Rocky Mountain
region. The Continental Divide runs north all the way into Canada
and south into Mexico. On the map below, predict where the
Continental Divide should be across the other states. Draw the line in
red.
Turn in this page to your teacher. This is the end of Activity PG-1.
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