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Are the USGS DRGs and derived contours accurate?

April 26, 2017accurate contours derived drgs USGS

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Are the USGS DRGs and derived contours accurate?

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Yes and No. All map information that Bismarck Map Company, USGS, and other vendors who are not licensed surveyors will always have a certain amount of error. Unless you get survey grade information developed for your property you can always assume some legitimate error from 3 feet up.