GEOL 1301 - Lab 01 - Topographic Maps
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University of Texas, Arlington *
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1301
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Geology
Date
Feb 20, 2024
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docx
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GEOL 1301 Name: Jonathan Venegas
Topography Lab
a
Learning and Lab objectives: For this lab we will focus on the topographical maps.
These are maps that contour elevation data and delineate the mountains and valleys
that occur over the surface of the Earth.
For a better idea of what this would look like from a birds eye view, there are two
maps at the back of the classroom where the topography in these areas is mimicked
by the plastic molds. Note that a single topographical contour will follow the same
elevation along the side of the hills and valleys, and that the steeper the hill, the
closer the contours are to each other.
Lab instructions:
The laminated topographic maps used for this activity cover a
portion of the field trip area in Oklahoma. Complete the short-answer questions for
Part 1 of this lab and then construct a profile along points A to B on the map for Part
2. Your instructor will go over the workflow for Part 2 at the beginning of class so
please pay close attention. Don’t forget to put your name on the worksheets!
Supplies needed for this lab: Ruler, simple calculator, piece of white paper, pencil,
and eraser
Terms and Concepts: Please review the following terminology in the online
resources presented below:
Topography (also addressed on Pg.6 of your textbook)
Longitude and latitude (subdivisions in degrees, minutes, seconds)
UTM coordinates
True north versus magnetic north, magnetic declination
Contour lines and contour interval
Map scale
Topographic profile
Online Resources:
https://en.wikipedia.org/wiki/Topographic_map
http://en.wikipedia.org/wiki/Geographic_coordinate_system
http://serc.carleton.edu/mathyouneed/slope/index.html
1
Part 1: General Aspects of Topographic Maps
1. What is the name of the quadrangle?
Springer
2. What is the latitude along the North border of the map?
97°7°30°
3. What is the longitude along the East border of the map (in the northeast corner)?
34°14°00
4. What is the magnetic declination in the area covered by the map?
2° East
5. What is the contour interval on the map?
0.2 miles and 0.2 Kilometers
6. The street running approximately north-south in the eastern half of the map (marked with two parallel lines) is Interstate-35. What is the latitude and longitude at
the place where I-35 crosses the boundary between Carter County and Murray County (to the nearest degree and half minute)?
Latitude: 97°8°30
Longitude: 34°22°30°
7. What is the elevation of this location?
1250
8. What is the ratio scale of the map?
1.24000
2
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