Stock photography, photos: Frosted Prairie Grass Stock photos of Frosted prairie grass that has been matted down by snow over the winter, Glendalough State Park, Minnesota. Photograph: © Matthew Thalman Click for a larger image and more information Keywords associated with this stock photo: grass, plantlife, plants, ecology, ecosystem, environment, environmentalism, grassland, habitat, landscape, nature, prairie, scenery, scenic, season, Winter, winter solstice, snow, weather, America, Glendalough, Glendalough SP, Glendalough State Park, Minnesota, North America, parks, State Parks, United States, United States of America, US, USA, frost