Copperas-Duck -- Cataloging Unit 07080101

• Upper Mississippi-Skunk-Wapsipinicon Accounting Unit 070801
  
• Upper Mississippi-Iowa-Skunk-Wapsipinicon Subregion 0708
  
• Upper Mississippi Region 07 (There are 131 cataloging units in this region.)
  The state composition by area is 51.3% Illinois, 48.7% Iowa.
  

  I. Graphical Locater Maps

  Roads

  Water Only

  8 Digit HUCs

  The area of this HUC in these maps is 2564.5 km² ( 990.6 mi² ) [% in USA = 35.53, % in Region = 25.19]
  The area from the USGS is 1040 mi².
  

  II. Flow Connections (upstream and downstream units)

  III. Named places in this watershed (total = 1279)

  IV. Elevation Analysis

  This analysis is based on 1024389 elevations on a 50 m grid within the area of this HUC.
  The mean elevation is 201.5 m ( 661.1 ft ) [% in USA = 24.40, % in Region = 15.27]
  The elevation standard deviation is 24.4 m ( 80.1 ft ) [% in USA = 15.35, % in Region = 29.77]
  The coefficient of variation is 12.1 %.
  The vertical relief is 112.8 m ( 370.1 ft ) [% in USA = 10.56, % in Region = 9.16]

  Elevation Percentiles

  	0 %	10 %	20 %	30 %	40 %	50 %	60 %	70 %	80 %	90 %	100 %
  meters	161.0	166.0	174.0	183.0	198.0	205.1	213.0	215.1	227.5	229.4	273.8
  feet	528.2	544.6	570.9	600.4	649.6	672.9	698.8	705.7	746.4	752.6	898.3

  

  V. Map Line Analysis

  Note- percentiles are for the feature density, not for the raw total lengths.
  

  line type	km	mi	km/km²	mi/mi²	% in USA	% in Region
  Perennial Shoreline	1064.1	661.3	0.415	0.668	94.50	92.37
  Intermittent Shoreline	0.1	0.1	0.000	0.000	29.13	22.14
  Perennial Streams	884.0	549.4	0.345	0.555	63.57	85.50
  Intermittent Streams	771.1	479.2	0.301	0.484	45.00	38.93
  Canals	27.1	16.8	0.011	0.017	66.89	62.60
  1° roads	126.7	78.7	0.049	0.079	89.20	92.37
  2° roads	199.7	124.1	0.078	0.125	96.16	97.71
  3° roads	265.5	165.0	0.104	0.167	74.09	71.76
  4° roads	4434.7	2756.2	1.729	2.782	87.73	94.66
  Total Roads	5026.6	3124.0	1.960	3.154	88.16	94.66
  Railroads	388.1	241.2	0.151	0.243	95.41	93.13
  Pipes and Powerlines	39.3	24.4	0.015	0.025	31.83	22.14

  
  Of the natural water in this HUC, 28.36% (by length) is intermittent [% in USA = 32.16, % in Region = 17.56]

  VI. Other sites

  • EPA- Surf Your Watershed - Index of Watershed Indicators
  • USGS- Science in Your Watershed - Selected Realtime Streamflow Stations
  • CTIC- Known Your Watershed

  ---

  1999 SEPT 4, Last updated on 2003 JAN 23
  
  D.L. Gustafson, dlg@rapid.msu.montana.edu