MILBANK, S.D. - Wind measurement towers put up ahead of planned wind farm projects are drawing concerns from crop dusters who say they blend in with the landscape.

Crop duster Brian Hauschild says the main problem with the towers is they have no markings.

Flying 140 mph at low altitudes in a small airplane carries numerous dangers.

But Hauschild says the unmarked towers add a danger that could be eased by the markings or lighting

Hauschild asked the Grant County Board of Commissioners to consider creating a requirement that the towers be ringed with colored markings to make them more visible.