Location of Peterson Farm

We will be visiting Norway in August and I would really like to find the farms that my ancestors came from or at least the area that they came from. This is the information that I know. My great great grandfather was Christian Peterson Marindahl. He was born at Baadshaugen, Norway Oct. 3 1816. He married Elie Svensdatter. He emmigrated to Wisconsin, then Yankton, South Dakota, then back to Norway. Elie was born at Overlien Norway possibly November 22, 1803. My husband found this information. The Baadshaugen Farm may be Farm Number 503 Skriverhaug. The Mariendal Farm is Farm Number 503 listed on page 42 of the book Norske Gaardnavne, Volume 3 By Oluf Rygh Published 1900 http://www.dokpro.uio.no/rygh_ng/rygh_form.html I am wondeirng if these are easy to find and also if there might be any relatives in the areas (Peterson). I think these are near Ringsaker. Is there a google map that may show where the farm is? Thanks