Using Topographic Maps worksheet with contour lines and elevation questions.

To solve this problem, we need to read the topographical map by looking at the contour lines.

Step 1: Find the Contour Interval
Look at the numbers on the map. We see a line labeled 600 and another line labeled 700.
Count how many spaces (intervals) are between the 600 line and the 700 line.
There are 5 spaces between them.
The difference in height is $700 - 600 = 100$ feet.
So, each single line represents a change of:
$$100 \div 5 = 20 \text{ feet}$$
This means every time you cross a line, the elevation goes up or down by 20 feet.

Step 2: Determine Elevation for Each Location

* Location A:
* Point A is sitting exactly on a contour line.
* Let's count up from the 600 line. The lines go: 620, 640, 660, 680, 700.
* Point A is on the line just above 680 and below 700? No, let's look closer.
* Starting at 600, going uphill towards the peak:
* 1st line: 620
* 2nd line: 640
* 3rd line: 660
* 4th line: 680
* 5th line: 700 (labeled)
* Point A is on the line above the 700 line.
* So, Location A is on the 720 foot line.
* Since it is exactly on the line, the elevation is 720 ft.
* *Correction*: Looking closely at point A, it is on the line immediately surrounding the innermost peak circle. Let's trace from 700. The next line up is 720. Point A is on that 720 line. Wait, let me re-examine the image carefully.
* Let's trace from the bottom right where it says 600.
* Line 1: 600
* Line 2: 620
* Line 3: 640
* Line 4: 660
* Line 5: 680
* Line 6: 700 (Labeled)
* Point A is on the next line inside the 700 loop. That would be 720.
* However, usually, these questions ask for a range if the point is *between* lines. Point A looks like it is on a line. Let's assume for a moment it's on the line. If it's on the line, the "between" answer is tricky. Usually, "between" implies the point is floating in space. Let's look at Point B.
* Point B is clearly between two lines.
* Point C is on a line with a dot.
* Point D is between lines.
* Point E is on a line.
* Let's re-read the prompt style. "Between ___ and ___". This format is often used even for points on lines in some worksheets, implying "it is not higher than X and not lower than Y". But typically, if it's on a line, the elevation is exact. Let's look at the specific positions again.
* Location A: It is on the contour line above 700. So it is on the 720 ft line. If forced to give a range for a point on a line, it might be interpreted as the interval it bounds, but standard practice is exact elevation. However, looking at the other points, B and D are clearly between. A, C, and E appear to be on lines. Let's look really closely at A. It is on the line. The line is 720.
* *Alternative interpretation*: Maybe the question asks for the range of the *area* around the point? No, it asks for the location.
* Let's look at Location B. It is between the 600 line and the next line up (620). So B is between 600 and 620.
* Let's look at Location C. It is on the line labeled 600. So elevation is 600.
* Let's look at Location D. It is between the 600 line and the line below it. The line below 600 is 580. So D is between 580 and 600.
* Let's look at Location E. It is on the line below the 600 line. That is the 580 line. So elevation is 580.

*Self-Correction on "Between"*: In many elementary earth science contexts, if a point is on a line, the teacher might still want the interval of the contour lines surrounding it if they are teaching interpolation, OR they simply want the exact value. However, the form has "Between __ and __". This strongly suggests finding the two bracketing contour lines.

* If a point is on a line (like A, C, E), strictly speaking, it isn't "between" two different elevations in terms of uncertainty, but it lies on the boundary. Often, worksheets will accept the exact line value or ask you to identify the lines it touches. But wait, if I look very closely at A, is it possible it's slightly off the line? No, it looks centered.
* Let's reconsider the standard way these are graded.
* If a point is between line 600 and 620, the elevation is >600 and <620.
* If a point is ON line 600, the elevation IS 600.

Let's look at the provided solution structure "Between ___ and ___". This is ambiguous for points on lines. Let's look at Location A again. It is on the 720 line. Is it possible the question implies the range of the *slope*? Unlikely.

Let's try a different perspective. Maybe I should provide the exact elevation if it's on a line, and the range if it's between. But the text boxes are identical.

Let's look at Location B again. It is definitely between 600 and 620.
Let's look at Location D again. It is definitely between 580 and 600.

What about A, C, E?
* C is on the 600 line.
* E is on the 580 line.
* A is on the 720 line.

If I must fill "Between", for a point on a line, it is technically between the previous interval and the next? No.

Let's assume the question allows for exact values or ranges.
However, there is a common convention in some tests: If a point is on a contour line, its elevation is that value. If the form forces "between", it might be a trick or a poorly designed form. BUT, looking at Location A, it is inside the 700 ring. The next ring is 720. A is on the 720 ring.

Let's look at Location C. It is on the 600 line.
Let's look at Location E. It is on the 580 line.

Actually, let's look closer at A. Is it possible A is between 720 and 740? The peak is inside. There is a small circle inside the 720 line. That small circle is likely 740. Point A is on the line surrounding the peak. That line is 720.

Let's look closer at C. It is on the line labeled 600.

Let's look closer at E. It is on the line below 600. That is 580.

Hypothesis: The worksheet might expect students to identify the bounding contours even for points on lines, e.g., "On the 600 line". But the text says "Between".

Let's try to interpret "Between" loosely as "Identify the elevation context".

Actually, let's look at Location B and D again. They are the only ones clearly "between".
Is it possible A, C, and E are also slightly off the lines?
* A: The dot is centered on the line.
* C: The dot is centered on the line.
* E: The dot is centered on the line.

In many online keys for this specific worksheet ("Using Topographical Maps"), if a point is on a line, the answer is often just that elevation, or the range is given as the line value to the next interval if it's a slope. But "Between 600 and 600" makes no sense.

Let's assume the standard scientific answer:
* If on a line: Exact Elevation.
* If between lines: Range.

However, since I must provide a text response, I will provide the most accurate reading.

Recalculating Elevations:
1. Contour Interval: 20 ft.
2. Location A: On the line above 700. $700 + 20 = 720$. Elevation: 720 ft.
3. Location B: Between the 600 line and the 620 line. Elevation: Between 600 and 620 ft.
4. Location C: On the line labeled 600. Elevation: 600 ft.
5. Location D: Between the 600 line and the 580 line (the one below 600). Elevation: Between 580 and 600 ft.
6. Location E: On the line below 600. $600 - 20 = 580$. Elevation: 580 ft.

*Note on the "Between" fields:* For locations A, C, and E, since they lie exactly on a contour line, they do not fall "between" two different elevations in the same way B and D do. However, sometimes in simplified grading, if a student writes the exact number, it is correct. If the system strictly demands a range for all, it is a flawed question for those points. I will provide the exact elevation for points on lines and the range for points between lines, as this is the scientifically correct way to read the map.

Final Check:
* Interval: 20 ft. Correct.
* A: On 720 line. Correct.
* B: Inside 600-620 band. Correct.
* C: On 600 line. Correct.
* D: Inside 580-600 band. Correct.
* E: On 580 line. Correct.

Final Answer:
Contour Interval: 20 feet

Feature Elevations:

* Location A: 720 ft (It is on the 720 contour line)
* Location B: Between 600 and 620 ft
* Location C: 600 ft (It is on the 600 contour line)
* Location D: Between 580 and 600 ft
* Location E: 580 ft (It is on the 580 contour line)