Location |
5 km (3 miles) east of Woodworth, N.Dak. |
Latitude and longitude |
47° 8' N-99° 15' W Elevation 572 m (1,877
feet) ASL |
Geographic location |
Northern Great Plains prairie pothole
region |
Biogeographic province |
Missouri Coteau |
Topography |
Stagnation moraine, knob and kettle |
Study area size |
12.3 km2 (4.75 square miles),
1,231 ha (3,040 acres) |
Number of wetland basins |
548 |
Total area in wetlands |
235.88 ha (582.42 acres) |
Percent in wetlands |
19% |
Percent in croplands |
30% |
Percent in miscellaneous |
3% |
Percent in native grass |
48% |
Area in shelterbelts, roads, pens,
rights-of way, and headquarters |
42.16 ha (104.10 acres) |
Density of wetland basins |
72 per square kilometer (28 per square
mile) |
Mean basin area |
0.43 ha (1.06 acres) |
Area in native grasslands |
587.85 ha (1,451.48 acres) |
Area in croplands |
365.31 ha (902.0 acres) |
Soil parent materials |
Glacial till |
Soil primary association |
Buse-Barnes |
Potential natural vegetation |
Habitat: Agropyron-stipa |
Climatic region |
Cool temperate subhumid |
Long-term average annual precipitation |
43.69 cm (17.0 inches) |
Long-term average annual snowfall |
86.36 cm (33.7 inches) |
Long-term average annual frost-free period |
120 days |
Long-term average date of last 2.5 cm of snow
cover |
25 March |
Long-term mean annual terperature |
4° C (40° F) |
Average depth of frost penetration |
1.5 m (4.9 feet) |