Coyanosa-Hackberry Draws -- Cataloging Unit 13070006

• Lower Pecos Subregion 1307
  
• Rio Grande Region 13 (There are 70 cataloging units in this region.)
  The state composition by area is 100.0% Texas.
  

  I. Graphical Locater Maps

  Roads

  Water Only

  8 Digit HUCs

  The area of this HUC in these maps is 3888.8 km² ( 1502.1 mi² ) [% in USA = 63.43, % in Region = 51.43]
  The area from the USGS is 1500 mi².
  

  II. Flow Connections (upstream and downstream units)

  III. Named places in this watershed (total = 225)

  IV. Elevation Analysis

  This analysis is based on 1553400 elevations on a 50 m grid within the area of this HUC.
  The mean elevation is 1201.0 m ( 3940.2 ft ) [% in USA = 76.69, % in Region = 40.00]
  The elevation standard deviation is 249.8 m ( 819.5 ft ) [% in USA = 77.26, % in Region = 62.86]
  The coefficient of variation is 20.8 %.
  The vertical relief is 1366.7 m ( 4483.9 ft ) [% in USA = 73.99, % in Region = 50.00]

  Elevation Percentiles

  	0 %	10 %	20 %	30 %	40 %	50 %	60 %	70 %	80 %	90 %	100 %
  meters	759.6	865.0	943.0	1038.0	1100.9	1198.8	1279.8	1350.4	1448.1	1539.4	2126.3
  feet	2492.1	2837.9	3093.8	3405.5	3611.8	3933.0	4198.8	4430.4	4750.9	5050.5	6976.0

  

  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	0.9	0.5	0.000	0.000	1.42	14.29
  Intermittent Shoreline	6.6	4.1	0.002	0.003	61.11	27.14
  Perennial Streams	3.1	1.9	0.001	0.001	3.27	22.86
  Intermittent Streams	1223.5	760.4	0.315	0.506	47.28	24.29
  Canals	0.0	0.0	0.000	0.000	35.62	40.00
  1° roads	26.8	16.6	0.007	0.011	50.92	70.00
  2° roads	136.2	84.7	0.035	0.056	64.61	88.57
  3° roads	47.6	29.6	0.012	0.020	13.07	24.29
  4° roads	3891.3	2418.5	1.001	1.610	36.48	67.14
  Total Roads	4101.9	2549.4	1.055	1.697	33.59	67.14
  Railroads	116.1	72.2	0.030	0.048	39.65	82.86
  Pipes and Powerlines	17.9	11.1	0.005	0.007	16.72	47.14

  
  Of the natural water in this HUC, 99.68% (by length) is intermittent [% in USA = 98.53, % in Region = 84.29]

  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