How can we provide geo-detection without hurting SEO?

[lunavista-comm]

We represent a franchise, and the parent site does well for head terms, but we want to add a feature with the nearest location to a consumer based on geo-detection.

We don't want to hurt the rankings for broad head terms. Could we use an iFrame to present the closest shop without affecting the general SEO we have done?

[AlanMosley]

I dont link to use iframe at all, it repersents a different page. i woule just alter the layout depending on location, i would not worry about cloaking as you are not treating google the same as anyone else from that location, that is ok. It is onoy a problem when you are treating google different to other visiters simply becuase they are google