1. EQ: How are elevation, relief and slope shown on a topographic map?
Topographic Maps
EQ: How are elevation, relief and slope shown on a topographic map?
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2. EQ: How are elevation, relief and slope shown on a topographic map?
A map showing the surface features of an area
Provide highly accurate information on the elevation, relief and slope of the ground surface
Why do we use topographic maps?
EQ: How are elevation, relief and slope shown on a topographic map?
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3. EQ: How are elevation, relief and slope shown on a topographic map?
Scale
Large scale maps that shows a close up view of part of Earth’s surface
Scale of 1 centimeter equals 0.24 kilometers
At this scale, a map can show details of elevation and features such as rivers and coastlines.
Large buildings, airports and major highways appear as outlines at the correct size
Google maps
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4. EQ: How are elevation, relief and slope shown on a topographic map?
Coverage
In the USA, the U.S. Geological Survey, or the USGS, produces the topographical maps for our country
They have made 57,000 maps at scales of either 1:24,000 (1 inch = 2,000 ft.) or 1:25,000
The maps cover and area of 145 square kilometers
EQ: How are elevation, relief and slope shown on a topographic map?
G1-4

5. EQ: How are elevation, relief and slope shown on a topographic map?
Symbols
Mapmakers use a variety of symbols to represent buildings, churches, railroad tracks, water, etc
EQ: How are elevation, relief and slope shown on a topographic map?
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6. Showing Relief on a Topographic Map
EQ: How are elevation, relief and slope shown on a topographic map?
Contour lines – used to represent elevation, relief, and slope on topographic maps
Contour interval – change in elevation from contour line to contour line
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7. Topographic maps show the shape of the land.
Contour lines show elevation, slope, and relief.
Closed circles represent hilltops.
Contour lines show steepness of slope.
Index contour lines show elevation.
Contour lines never cross.
SECTION
OUTLINE
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8. Global Positioning System GPS
A network of 24 satellites that find the latitude, longitude and elevation of points on Earth’s surface
EQ: How are elevation, relief and slope shown on a topographic map?
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9. Class Work and Homework
Fill In
What did I learn
Confused
Say
Reading a Topographical Map (USGS Packet)
Read pages G29 – G33, questions Answer with complete sentences 
EQ: How are elevation, relief and slope shown on a topographic map?
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