A cartographer creates a topographic map using contour lines every 10 meters. A hill rises from 120 meters to 680 meters above sea level. How many contour lines (including both elevations) appear on the map? - NBX Soluciones
Creating Accurate Topographic Maps: Understanding Contour Lines
Creating Accurate Topographic Maps: Understanding Contour Lines
A topographic map is an essential tool for cartographers, hikers, geologists, and urban planners. It visually represents elevation changes across a landscape using contour lines—imaginary lines connecting points of equal elevation above sea level. One common practice is defining contour intervals that simplify terrain interpretation while maintaining precision.
The hill in focus rises from 120 meters to 680 meters above sea level. With a standard contour interval of 10 meters, cartographers carefully determine how many contour lines appear on the map. But how is this calculated?
Understanding the Context
Understanding Contour Lines and Intervals
Contour lines mark specific elevation levels. For example, every 10 meters—120 m, 130 m, 140 m—up to 680 m—each represents a distinct elevation. Since the base elevation is 120 m and the peak reaches 680 m, the total vertical rise is:
680 m – 120 m = 560 meters
With a 10-meter contour interval, the number of elevation steps is:
Image Gallery
Key Insights
560 ÷ 10 = 56 intervals
However, contour lines are drawn at each elevation point, including both the starting and ending points. This means the first contour line appears at 120 m, and the last at 680 m, spanning exactly 56 intervals.
Total Number of Contour Lines
Because each elevation increment corresponds to a single contour line, and both endpoints are included, there are 57 contour lines on the map.
Visual and Practical Implications
🔗 Related Articles You Might Like:
📰 dark wolf episodes 📰 jay lee 📰 tom everett 📰 Wells Fargo Bank Lompoc 7393642 📰 These Grinch Shoes Are Spreading Grinch Energydont Miss Out 8969743 📰 Pak Sim Data 7828004 📰 How To Find Percent Change 9543490 📰 2023 Fhrender Verteidiger Bei Wichtigen Aem Qualifikationen Verletzte Sich Kurz Vor Turnierbeginn Kam Aber Trotz Unitspielstil Ins Turnier 6622242 📰 Best Headphones For Travel 6464028 📰 Discover The 3 Rivers Fcu Miracle That Millions Are Dreaming Of 8766742 📰 Total Paw Ty Perfection Discover The Golden Retriever Husky Mix You Never Knew You Needed 9550566 📰 Best Bank Account 5448106 📰 Kid Stabbed At Track Meet 392404 📰 Dow Current 7215856 📰 The Inspector General Exposed Shocking Scandalsheres What He Never Told You 1687102 📰 How To Screenshot For Mac 3100865 📰 Diablo 4 Season 7 Real Sorcery And Devastating Changes That Will Change How You Play Forever 6934127 📰 This Extreme Wolf Clipart Will Blow Your Fan Art Ideas Out Of The Water 8388333Final Thoughts
This structured elevation representation helps hikers gauge steepness, engineers plan construction, and scientists model watersheds or land degradation. Precision in selecting interval size—like 10 meters—ensures clarity without cluttering the map.
In summary:
- Start: 120 m
- End: 680 m
- Elevation range: 560 m
- Contour interval: 10 m
- Contour lines drawn at: 120, 130, ..., 680 (inclusive)
- Total contours: 120 → 130 → ... → 680 = (680 – 120)/10 + 1 = 57 lines
This methodical approach underscores the cartographer’s role in transforming raw terrain into actionable geographic knowledge.
Key SEO Keywords:
topographic map, contour lines, elevation intervals, cartography, 10 meter contour interval, hill elevation 120m to 680m, cartographic accuracy, topographic mapping, contour line count, terrain representation
Use this detailed breakdown to enhance understanding of how contour lines symbolize elevation—and how cartographers determine how many to include on a topographic map.
