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USA, Illinois, Cass, Beardstown; West of US Rt. 67, along powerline right-of-way along sand ridge south of Bergen Road. Coordinate datum WGS 84 / NAD 83., 39.961 -90.48

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USA, Illinois, Ogle, Nachusa Prairie. Oregon Section of the Rock River Hill Country Natural Division. Coordinate Datum: WGS84/NAD83., 41.88955 -89.355

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USA, Illinois, Cass, Beardstown; east side of U.S. Route 67, about 3 miles south of Beardstown, residential area. Historic Stylisma site. Coordinate datum WGS 84 / NAD 83., 39.96825 -90.46497

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USA, Illinois, Pope, Vienna Ranger District, Compartment 28.

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USA, Illinois, Pope, vienna Ranger District, Compartment 29. Crow Knob.

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USA, Illinois, McHenry, Glacial Park, north of Harts Road, west of Illinois Route 31, 5.4 miles south of Richmond, 2.5 miles north of Ringwood. West side of old railroad berm. Coordinate Datum: WGS84/NAD83., 42.42762 -88.30637, 238m

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USA, Illinois, Will, Hitts Siding Nature Preserve. Kankakee Sand Area Section of the Grand Prairie Natural Division. Weedy area along sand road in the Nature Preserve. Coordinate datum: WGS84/NAD83., 41.30418 -88.17217, 175m

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USA, Illinois, Pope, Gibbons Creek Barrens natural area, 1.4 km WNW of Herod, IL, W of IL Route 34. (plot 2). Within USFS property., 37.555208 -88.45128

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USA, Illinois, Will, West side of IL Rt. 53 alongside the Union Pacific Railroad between Wilmington and Braidwood, between North Front Street and North Washington Street, south of Coal City Road. Coordinate datum: WGS84/NAD83., 41.27652 -88.19608

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USA, Illinois, Whiteside, About 9 mile southeast of Clinton Iowa. About 2.5 to 3.0 mile east of the Rock Island and Whiteside county line in Whiteside County. Native sand prairie with most being grazed by cattle and some areas being used as a dumping areas. Mississippi River Section of the Illinois River and Mississippi River Sand Areas Natural Division. Coordinate Datum: WGS84/NAD83., 41.69662 -90.17835

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USA, Illinois, Pope, Gibbons Creek Barrens natural area, 1.4 km WNW of Herod, IL, W of IL Route 34. Within USFS property., 37.555208 -88.45128

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USA, Illinois, Macoupin, Woodburn. Woodburn Botanical Area INAI site, north side of County Highway 14, west of Dickson Lane and west of a tributary of Girder Branch Creek. Elevation 179-180 meters. Coordinate Datum: WGS84/NAD83., 39.04969 -90.03591

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USA, Illinois, Pope, Vienna Ranger District, Compartment 29. Crow Knob.

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USA, Illinois, Gallatin, Pounds Hollow Recreation Area. Southeast of Harrisburg, west side of Route 1 near the Gallatin/Hardin County line., 37.61574 -88.27347, 152m

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USA, Illinois, Grundy, Short Pioneer Cemetery Prairie Nature Preserve. 7 mile east and 2.5 mile south of Morris, Illinois., 41.33116 -88.28826, 168m

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USA, Illinois, Shelby, Northeast of Harrisburg and just south of the Middle Fork of the Saline River. Bottomlands Section of the Southern Till Plain Natural Division. Datum: WGS84/NAD83., 37.75429 -88.51826

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USA, Illinois, Randolph, North of Route 154 and east of Kaskaskia River & 200 feet east of gaging station. Mount Vernon Hill Country Section of the Southern Till Plain Natural Division. Datum: WGS84/NAD83., 38.18708 -89.88047

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USA, Illinois, Mason, Sand Ridge State Forest. Illinois River Section of the Illinois River and Mississippi River Sand Areas Natural Division. Duck Island Quadrangle. Elevation about 530 feet. Quiver Prairie, the largest open dry sand prairie of the three open sand prairie sites. (WGS84/NAD83), 40.411 -89.8918

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USA, Illinois, Saint Clair, 1 mile west of the Kaskaskia River and 1.5 mile southwest of New Athens. Soil type Okaw Silt Loam. Effingham Plain Section of the Southern Till Plain Natural Division. Coordinate Datum: WGS84/NAD83., 38.32278 -89.91232

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USA, Illinois, Washington, Recker Woods. Effingham Plain Section of the Southern Till Plain Natural Division. Coordinate Datum: WGS84/NAD83., 38.42398 -89.66534

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USA, Illinois, Kankakee, 1.25 mile west of Doney. About 3 mile east and 3 mile north of Saint Anne.

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USA, Illinois, Iroquois, Northeast corner of Iroquois County. Iroquois County State Conservation Area in Hooper Branch Savanna Nature Preserve. Kankakee Sand Area Section of the Grand Prairie Natural Division. Coordinate Datum: WGS84/NAD83., 41.00668 -87.55877

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USA, Illinois, Pope, Along Cooney Creek; north of Burke Branch Natural Area.

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USA, Illinois, Will, North of IL Rt. 129, west of IL Rt. 53 alongside the west side of the Union Pacific Railroad between Wilmington and Braidwood, south of Coal City Road. Coordinate datum: WGS84/NAD83, 41.2876 -88.18316

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USA, Kentucky, Trigg, Along the Trace at Colson Overlook Picnic Area south of road 169, Land between the Lakes.

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USA, Illinois, Hardin, At Barker Bluff Natural Area east of Loves Corner and off of IL 146-IL 1.

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USA, Illinois, Iroquois, Bonnie's Prairie Nature Preserve, 40.83094 -87.73488

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USA, Illinois, Johnson, Vienna Ranger District, Compartment 38.

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USA, Illinois, Pope, Gibbons Creek Barrens, 1 mile north of Herod, east of IL Route 3.