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National Park Mystery Photo 26 Revealed: A Sluice Gate At Ozark National Scenic Riverways | National Parks Traveler
![Martin KOCH | Professor (Full) | Professor | Philipps University of Marburg, Marburg an der Lahn | PUM | Department of Physics and Material Sciences Center | Research profile Martin KOCH | Professor (Full) | Professor | Philipps University of Marburg, Marburg an der Lahn | PUM | Department of Physics and Material Sciences Center | Research profile](https://i1.rgstatic.net/ii/profile.image/518319883407360-1500588498228_Q512/Martin-Koch.jpg)
Martin KOCH | Professor (Full) | Professor | Philipps University of Marburg, Marburg an der Lahn | PUM | Department of Physics and Material Sciences Center | Research profile
![Lake McDlonald Through the Trees Glacier National Park Framed Print by Marty Koch - Fine Art America Lake McDlonald Through the Trees Glacier National Park Framed Print by Marty Koch - Fine Art America](https://render.fineartamerica.com/images/rendered/default/framed-print/images/artworkimages/medium/1/lake-mcdlonald-through-the-trees-glacier-national-park-marty-koch.jpg?imgWI=8&imgHI=10&sku=CRQ13&mat1=PM918&mat2=&t=2&b=2&l=2&r=2&off=0.5&frameW=0.875)