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GPS City Q&A » Topographic Mapping » What are the differences between the Topo 24K and 100K maps?

Topographic Mapping (3 replies)

Item

Original Question

What are the differences between the Topo 24K and 100K maps?

› Garmin Topographic 100K USA DVD with BaseCamp

Author

Reply

Doug
Mpls, MN

Original question asked on Mar 4, 2012, 11:42am

New GPS user and want to now the difference between USA 100K topo and a regional 24K topo. Is the level of detail different?

Jordan
GPS City

Reply #1 on Mar 5, 2012, 6:23am

You will get four times as many contour lines with the 24K mapping. Gives you better elevation resolution.

JR
Clancy, Montana

Reply #2 on Aug 23, 2012, 6:23am

Why would the 24K have more contourlines than the 100K?

Jordan
GPS City

Reply #3 on Aug 23, 2012, 7:45am

It is a scale. Scale is the relationship between distance on the map and distance on the ground. A map scale usually is given as a ratio such as 1:24K or 1:100K. 1 scale on the map represents 24000 on the ground. In short there will be more lines in 1:24k as per 1:100K. lets say 1 inch for every 24000 inches or in the other 1 inch for every 100000 inches.

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