Northwestern Illinois Horseshoe Mound Horseshoe Mound and Casper Bluff Land & Water Reserve True North Watching Mushroom Standing Summer Grasses Post and Wire Mississippi River Through the Trees Green and Light Broken Stone Stone in Morning Stones in Sunlight Trunk Pine Base Forrest View Branch of Shade Vista Mushroom Community Morning Rays Weeds Population of Green Opening Bells Leaf and Stone Greenery Flower Portrait Frosted Leaves Oak Leaves Horseshoe Mound