Pecan-Waterhole -- Cataloging Unit 11140106

• Red-Little Accounting Unit 111401
  
• Red-Sulphur Subregion 1114
  
• Arkansas-White-Red Region 11 (There are 173 cataloging units in this region.)
  The state composition by area is 55.7% Texas, 29.2% Oklahoma, 15.1% Arkansas.
  

  I. Graphical Locater Maps

  Roads

  Water Only

  8 Digit HUCs

  The area of this HUC in these maps is 3756.2 km² ( 1450.9 mi² ) [% in USA = 61.01, % in Region = 59.54]
  The area from the USGS is 1460 mi².
  

  II. Flow Connections (upstream and downstream units)

  III. Named places in this watershed (total = 707)

  IV. Elevation Analysis

  This analysis is based on 1500731 elevations on a 50 m grid within the area of this HUC.
  The mean elevation is 115.0 m ( 377.3 ft ) [% in USA = 16.53, % in Region = 10.40]
  The elevation standard deviation is 20.9 m ( 68.6 ft ) [% in USA = 12.13, % in Region = 6.36]
  The coefficient of variation is 18.2 %.
  The vertical relief is 141.7 m ( 464.9 ft ) [% in USA = 16.86, % in Region = 15.03]

  Elevation Percentiles

  	0 %	10 %	20 %	30 %	40 %	50 %	60 %	70 %	80 %	90 %	100 %
  meters	71.3	91.0	97.2	102.0	106.0	112.0	118.0	122.3	135.0	147.2	213.0
  feet	233.9	298.6	318.9	334.6	347.8	367.4	387.1	401.2	442.9	482.9	698.8

  

  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	1140.2	708.6	0.304	0.488	90.67	96.53
  Intermittent Shoreline	6.1	3.8	0.002	0.003	60.54	46.24
  Perennial Streams	967.3	601.2	0.258	0.414	49.60	76.30
  Intermittent Streams	1691.3	1051.1	0.450	0.724	63.57	46.82
  Canals	6.3	3.9	0.002	0.003	49.22	72.25
  1° roads	25.2	15.7	0.007	0.011	50.54	56.65
  2° roads	112.3	69.8	0.030	0.048	56.70	43.35
  3° roads	188.2	117.0	0.050	0.081	46.23	47.98
  4° roads	3226.8	2005.4	0.859	1.382	26.39	15.03
  Total Roads	3552.4	2207.9	0.946	1.522	27.48	13.87
  Railroads	140.1	87.1	0.037	0.060	46.38	41.04
  Pipes and Powerlines	193.1	120.0	0.051	0.083	71.91	72.25

  
  Of the natural water in this HUC, 44.61% (by length) is intermittent [% in USA = 46.99, % in Region = 15.61]

  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