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Most acquisitions are intended to increase habitat at existing wetland complexes, so it is unlikely that tracts will be acquired in the entire 35-county area. Most WPAs are small, from 100 to 500 acres (2.0 km 2), but several have grown considerably. Union Hills WPA in Cerro Gordo County is the largest in Iowa at over 2,000 acres (8.1 km 2).
Barringer Slough (red) on landform map of Iowa. Barringer Slough is a rich wetland area located in northeast Clay County in northwestern Iowa. This area is a reconstructed remnant of the Des Moines lobe, a region of Iowa which was once covered by interconnected prairie wetlands. This wetland marsh and the surrounding public uplands cover 1,526 ...
In 2008, data covering 66,200,000 acres (268,000 km 2) were added to the Wetlands Geodatabase. These included 28,100,000 acres (114,000 km 2) of updated wetland map information, new data for 6,800,000 acres (28,000 km 2) not previously available and 31,300,000 acres (127,000 km 2) of data that were captured in digital format. An additional ...
There is a dearth of natural areas in Iowa; less than 1% of the tallgrass prairie that once covered most of Iowa remain intact, only about 5% of the state's prairie pothole wetlands remain, and most of the original forest has been lost. [6] Iowa ranks 49th of U.S. states in public land holdings. [7]
IA 1989 911 acres (3.69 km 2) [140] Iowa Wetland Management District: Covers 15 counties IA 25,000 acres (100 km 2) 75 waterfowl production areas [141] Neal Smith National Wildlife Refuge: Jasper County: IA 1990 8,654 acres (35.02 km 2) [142] Port Louisa National Wildlife Refuge: Louisa County Mercer County, Illinois: IA 1958 1,078 acres (4.36 ...
The average price of Iowa farmland reached $11,835 an acre last year, an ISU survey shows, the second year in a row that values set a record high. They have climbed 63% compared to five years ago ...
Name used in the default map caption; image = USA Iowa location map.svg The default map image, without "Image:" or "File:" image1 = USA Iowa relief location map.svg An alternative map image, usually a relief map, which can be displayed via the relief or AlternativeMap parameters; top = 43.7 Latitude at top edge of map, in decimal degrees ...
The NWI relies on trained image analysts to identify and classify wetlands and deepwater habitats from aerial imagery. NWI started mapping wetlands at a small scale (1:250,000 map which covers an area the size of 128-1:24,000 USGS topographic maps or approximately 7,400 square miles).