Poteau -- Cataloging Unit 11110105

• Robert S Accounting Unit 111101
  
• Lower Arkansas Subregion 1111
  
• Arkansas-White-Red Region 11 (There are 173 cataloging units in this region.)
  The state composition by area is 71.3% Oklahoma, 28.7% Arkansas.
  

  I. Graphical Locater Maps

  Roads

  Water Only

  8 Digit HUCs

  The area of this HUC in these maps is 4933.9 km² ( 1905.8 mi² ) [% in USA = 77.17, % in Region = 80.92]
  The area from the USGS is 1860 mi².
  

  II. Flow Connections (upstream and downstream units)

  III. Named places in this watershed (total = 1260)

  IV. Elevation Analysis

  This analysis is based on 1970357 elevations on a 50 m grid within the area of this HUC.
  The mean elevation is 233.4 m ( 765.7 ft ) [% in USA = 29.04, % in Region = 21.97]
  The elevation standard deviation is 90.5 m ( 296.9 ft ) [% in USA = 53.34, % in Region = 67.63]
  The coefficient of variation is 38.8 %.
  The vertical relief is 716.8 m ( 2351.7 ft ) [% in USA = 60.54, % in Region = 84.97]

  Elevation Percentiles

  	0 %	10 %	20 %	30 %	40 %	50 %	60 %	70 %	80 %	90 %	100 %
  meters	121.0	152.0	160.4	182.0	187.8	212.9	223.5	248.0	285.3	345.2	837.8
  feet	397.0	498.7	526.2	597.1	616.1	698.5	733.3	813.6	936.0	1132.5	2748.7

  

  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	1111.4	690.7	0.225	0.362	83.66	89.60
  Intermittent Shoreline	7.7	4.8	0.002	0.003	60.07	45.66
  Perennial Streams	1529.4	950.5	0.310	0.499	58.60	87.86
  Intermittent Streams	3495.5	2172.4	0.708	1.140	88.06	83.82
  Canals	0.0	0.0	0.000	0.000	35.62	56.65
  1° roads	11.3	7.0	0.002	0.004	44.15	45.66
  2° roads	277.4	172.4	0.056	0.090	87.45	89.60
  3° roads	389.0	241.8	0.079	0.127	64.52	69.94
  4° roads	4910.8	3052.1	0.995	1.601	36.14	30.64
  Total Roads	5588.5	3473.3	1.133	1.822	38.23	31.79
  Railroads	430.6	267.6	0.087	0.140	82.66	85.55
  Pipes and Powerlines	148.4	92.2	0.030	0.048	51.40	49.71

  
  Of the natural water in this HUC, 57.02% (by length) is intermittent [% in USA = 57.51, % in Region = 27.17]

  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