Little Missouri -- Cataloging Unit 08040103

• Upper Ouachita Accounting Unit 080401
  
• Lower Red - Ouachita Subregion 0804
  
• Lower Mississippi Region 08 (There are 82 cataloging units in this region.)
  The state composition by area is 100.0% Arkansas.
  

  I. Graphical Locater Maps

  Roads

  Water Only

  8 Digit HUCs

  The area of this HUC in these maps is 5455.9 km² ( 2107.4 mi² ) [% in USA = 82.61, % in Region = 89.02]
  The area from the USGS is 2080 mi².
  

  II. Flow Connections (upstream and downstream units)

  III. Named places in this watershed (total = 1498)

  IV. Elevation Analysis

  This analysis is based on 2179247 elevations on a 50 m grid within the area of this HUC.
  The mean elevation is 128.8 m ( 422.6 ft ) [% in USA = 17.86, % in Region = 95.12]
  The elevation standard deviation is 76.7 m ( 251.6 ft ) [% in USA = 49.64, % in Region = 97.56]
  The coefficient of variation is 59.5 %.
  The vertical relief is 638.8 m ( 2095.8 ft ) [% in USA = 58.93, % in Region = 98.78]

  Elevation Percentiles

  	0 %	10 %	20 %	30 %	40 %	50 %	60 %	70 %	80 %	90 %	100 %
  meters	28.0	65.3	76.5	88.0	91.0	106.0	121.0	145.0	176.0	213.0	666.8
  feet	91.9	214.2	251.0	288.7	298.6	347.8	397.0	475.7	577.4	698.8	2187.6

  

  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	385.6	239.7	0.071	0.114	44.72	28.05
  Intermittent Shoreline	0.9	0.6	0.000	0.000	34.25	43.90
  Perennial Streams	2132.9	1325.6	0.391	0.629	69.16	67.07
  Intermittent Streams	3869.5	2404.9	0.709	1.141	88.20	82.93
  Canals	67.1	41.7	0.012	0.020	68.59	37.80
  1° roads	75.2	46.7	0.014	0.022	60.63	54.88
  2° roads	105.7	65.7	0.019	0.031	41.21	19.51
  3° roads	845.2	525.3	0.155	0.249	85.88	60.98
  4° roads	5752.6	3575.3	1.054	1.696	41.07	50.00
  Total Roads	6778.6	4213.0	1.242	1.999	46.33	43.90
  Railroads	316.3	196.6	0.058	0.093	65.14	59.76
  Pipes and Powerlines	191.0	118.7	0.035	0.056	56.70	28.05

  
  Of the natural water in this HUC, 60.58% (by length) is intermittent [% in USA = 61.16, % in Region = 78.05]

  VI. Other sites

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

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