Sidney Draw -- Cataloging Unit 10190017

• South Platte Subregion 1019
  
• Missouri Region 10 (There are 310 cataloging units in this region.)
  The state composition by area is 78.9% Nebraska, 18.9% Colorado, 2.2% Wyoming.
  

  I. Graphical Locater Maps

  Roads

  Water Only

  8 Digit HUCs

  The area of this HUC in these maps is 1949.2 km² ( 752.9 mi² ) [% in USA = 18.47, % in Region = 12.58]
  The area from the USGS is 744 mi².
  

  II. Flow Connections (upstream and downstream units)

  III. Named places in this watershed (total = 44)

  IV. Elevation Analysis

  This analysis is based on 777389 elevations on a 50 m grid within the area of this HUC.
  The mean elevation is 1502.6 m ( 4929.7 ft ) [% in USA = 83.33, % in Region = 80.00]
  The elevation standard deviation is 100.5 m ( 329.7 ft ) [% in USA = 55.71, % in Region = 59.35]
  The coefficient of variation is 6.7 %.
  The vertical relief is 440.5 m ( 1445.2 ft ) [% in USA = 50.78, % in Region = 51.94]

  Elevation Percentiles

  	0 %	10 %	20 %	30 %	40 %	50 %	60 %	70 %	80 %	90 %	100 %
  meters	1253.0	1354.8	1410.1	1441.7	1477.4	1501.5	1538.7	1570.1	1606.8	1636.9	1693.5
  feet	4110.8	4444.8	4626.3	4729.9	4847.1	4926.1	5048.2	5151.2	5271.6	5370.3	5556.0

  

  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	0.5	0.3	0.000	0.000	1.52	0.65
  Intermittent Shoreline	6.4	4.0	0.003	0.005	71.39	46.77
  Perennial Streams	0.9	0.6	0.000	0.001	2.79	2.90
  Intermittent Streams	861.0	535.1	0.442	0.711	62.91	32.90
  Canals	0.0	0.0	0.000	0.000	35.62	43.55
  1° roads	15.5	9.6	0.008	0.013	52.16	68.06
  2° roads	0.0	0.0	0.000	0.000	15.35	10.97
  3° roads	31.0	19.3	0.016	0.026	17.01	27.42
  4° roads	1756.6	1091.8	0.901	1.450	29.42	50.97
  Total Roads	1803.1	1120.7	0.925	1.488	26.05	46.45
  Railroads	6.0	3.7	0.003	0.005	16.06	16.77
  Pipes and Powerlines	77.3	48.1	0.040	0.064	60.97	78.71

  
  Of the natural water in this HUC, 99.84% (by length) is intermittent [% in USA = 99.05, % in Region = 100.00]

  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