GEY1112_L11_MapReading_JElyWasinger
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GEY1112
Name: Jay Ely-Wasinger
Date: November 10, 2023
Class/section: GEY1112-C11
Instructor: Kristin Quadracci
Lab Partner(s): N/A
Lab 11 – Fundamentals of Map Reading
Original, completed Lab Notebook pages for the following are included in this
Lab submission:
I.
Pre-lab questions
II.
Experiment 1
III.
Experiment 2
Includes
:
Legible
photos or scans (with name card) of walking paths on two maps
Legible
photos or scans (with name card and signed) of topographic
profile. Include labels on X axis
Fundamentals of Map Reading
Please note: for any questions that require additional research, consider using Google
Scholar instead of Google. Also, any information taken/used from a source should be
properly cited.
PRE-LAB QUESTIONS
1.
On the same size piece of paper, which map would represent the greatest area on the
actual ground? 1:27000 or 1:82500. How do you know?
The map with a ratio of 1:82500 would represent the most area, as a unit of the map
would represent 82500 units in real life, but the map with the 1:27000 ratio would have
greater details and a closer POV.
2.
Describe the contour pattern difference between a ridge and a river.
The contour pattern for a ridge looks like a “V” that points to a lower elevation, while the
contour pattern for a river is shown as the same “V” pattern, but pointing to the higher
elevation
3.
Define relief.
Fundamentals of Map Reading
EXPERIMENT 1: USING A TOPOGRAPHIC MAP
Post-Lab Questions
1.
What is the approximate elevation of Wonderland Lake? Explain your reasoning.
Wonderland Lake is approximately 5520’ above sea level, as the closest bold contour
line is 5600’ and each lighter line calculates to be 40’.
4.
What is the elevation on the peak of Poorman Hill (near the western border of the map,
midway between north and south)? Explain your reasoning.
The peak of Poorman Hill is about 6480’, because each the closest bold contour is
6400’, and it ends up between 40-80’ higher than that, based on the pattern of the hill.
5.
Boulder Creek is just south of Poorman Hill. Which is steeper: the banks of the creek or
the area close to the peak of Poorman Hill? Explain your reasoning.
The banks closer to Boulder Creek are steeper because the contour lines of the banks
occur closer together, indicating a faster jump in elevation than if the lines are further
apart.
6.
You decide to walk from the top of Poorman Hill to Boulder Creek directly south. What is
the relief of this walk? Sketch your path and show your calculations below. Be sure to
take a picture of your path and include it in your
response.
The total relief from the top of Poorman Hill to Boulder
Creek by going directly south is 680’.
Fundamentals of Map Reading
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7.
When taking into account the horizontal distance (from the map scale) and the vertical
distance (relief), what is the total distance of your walk in question 4? Show your
calculations below. Hint: use the Pythagorean Theorem (a
2
+ b
2
= c
2
).
The total walking distance between Poorman Hill and Boulder Creek, directly south, is
2498.416’, or a little less than half a mile!
8.
Standing on the peak of Poorman Hill, you decide to walk to the intersection of Canyon
Lane and Broad-way. Trace the easiest route on the map and explain your reasoning
using contour patterns. Take a picture of your route and include it in your response.
I would start at the top of Poorman Hill,
walk south to Boulder Creek, then
follow the water, as it leads directly to
the location I’m trying to get to and it
doesn’t require me to walk back uphill,
I did that plenty to walk UP Poorman
Hill. Path of least resistance, woo!
Fundamentals of Map Reading
EXPERIMENT 2: TOPOGRAPHIC PROFILES
Data Sheet
Fundamentals of Map Reading
Picture of Your Topographic Profile:
Fundamentals of Map Reading
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Experiment 2 Post-Lab Questions
1.
What is the contour interval of this map?
Fundamentals of Map Reading
The interval of the contour lines is 40’ between each line and 200’ between each bold
line.
9.
Does your topographic profile show any peaks or valleys? If so, what are the
corresponding highest and lowest elevations?
There is a peak at about 7160’ near side A, and there is a valley at 6920’.
10. Determine the elevation at Point A and Point B and find the difference in elevation
between the two points.
The elevation at Point A is about 7040’, while the elevation at Point B is about 6840’. The
difference in elevation between the two points is about 200’.
Historical Geology. (2020, May 27). Wikibooks, The Free Textbook Project. Retrieved
4:57pm, 10 November 2023 from https://en.wikibooks.org/w/index.php?
title=Historical_Geology&oldid=3693288.
Fundamentals of Map Reading