Name _________________________________________________
To complete this worksheet, see the instructions in the textbook (Chapter 12 Investigation).
Table 1. Landscape Features and Geologic Setting
Observations: Read the
descriptions in your textbook
(Chapter 12 Investigation)
about this place and think
about what the descriptions
imply about the slope
stability and other geologic
aspects.
Processes: On Table 2,
identify the type of slope
failure or soil process that is
most likely at each site. On
the figure, draw approximate
boundaries around areas that
you interpret as having the
highest risk for that type of
slope failure. Label each area
with a few words to identify
the main hazard you interpret
to be present. Write your
answers in Table 2.
Safe Place to Live: On the
map, write the letter (S) for
the safest place and (N) for
the next safest. There is not a
single best choice, but be
prepared to describe your
reasoning and defend your
choice.
Chapter 12 Investigation Worksheet, page 1
Chapter 12 Investigation Worksheet; page
Table 2. Potential for Slope Failure at Specific Sites
For the sites listed below, identify what slope or soil process is most likely for each site, and briefly list one or two key observations
that led you to that conclusion.
Location
Slope Process (circle one or two) and Key Observations (list one or two)
(a) rock fall, (b) rock slide, debris slide, or slump, (c) rock, debris, or snow avalanche,
1. Bent Fence Hills
(d) debris flow, (e) creep, (f) swelling or compacting soil, (g) none of the above
Key Observations:
(a) rock fall, (b) rock slide, debris slide, or slump, (c) rock, debris, or snow avalanche,
2. Flattop Hill
(d) debris flow, (e) creep, (f) swelling or compacting soil, (g) none of the above
Key Observations:
(a) rock fall, (b) rock slide, debris slide, or slump, (c) rock, debris, or snow avalanche,
3. Snow Mountain
(d) debris flow, (e) creep, (f) swelling or compacting soil, (g) none of the above
Key Observations:
(a) rock fall, (b) rock slide, debris slide, or slump, (c) rock, debris, or snow avalanche,
4. Rock Valley
(d) debris flow, (e) creep, (f) swelling or compacting soil, (g) none of the above
Key Observations:
(a) rock fall, (b) rock slide, debris slide, or slump, (c) rock, debris, or snow avalanche,
5. Gray Mountain
(d) debris flow, (e) creep, (f) swelling or compacting soil, (g) none of the above
Key Observations:
(a) rock fall, (b) rock slide, debris slide, or slump, (c) rock, debris, or snow avalanche,
6. Wild Ride Valley
(d) debris flow, (e) creep, (f) swelling or compacting soil, (g) none of the above
Key Observations:
(a) rock fall, (b) rock slide, debris slide, or slump, (c) rock, debris, or snow avalanche,
7. Tilted Mountain
(d) debris flow, (e) creep, (f) swelling or compacting soil, (g) none of the above
Key Observations:
(a) rock fall, (b) rock slide, debris slide, or slump, (c) rock, debris, or snow avalanche,
8. Cliff at base of Tilted
(d) debris flow, (e) creep, (f) swelling or compacting soil, (g) none of the above
Mountain
Key Observations:
(a) rock fall, (b) rock slide, debris slide, or slump, (c) rock, debris, or snow avalanche,
9. Left end of Hazel
(d) debris flow, (e) creep, (f) swelling or compacting soil, (g) none of the above
River
Key Observations:
2