@coxp17

TOPO maps are more or less for outdoor activities in the nature and most of them don't have routing data. Some of the newer TOPO maps have been created with routing data and they are also mostly in NT format for that reason.

TOPO U.S. 100K v4.00 is a traditional TOPO map in non-NT format.

Supported Features TOPO TOPO 100K TOPO 24K
Scale Varies by region 1:100,000 1:24,000
Creates turn-by-turn routes Varies by region
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Available formats DVD, microSD™/SD™, download DVD, microSD/SD, download Varies by region