Salton Sea -- Cataloging Unit 18100200

• Southern Mojave-Salton Sea Subregion 1810
  
• California Region 18 (There are 135 cataloging units in this region.)
  The state composition by area is 100.0% California.
  

  I. Graphical Locater Maps

  Roads

  Water Only

  8 Digit HUCs

  The area of this HUC in these maps is 18740.2 km² ( 7238.7 mi² ) [% in USA = 99.57, % in Region = 98.52]
  The area from the USGS is 7250 mi².
  

  II. Flow Connections (upstream and downstream units)

  III. Named places in this watershed (total = 2814)

  IV. Elevation Analysis

  This analysis is based on 7483208 elevations on a 50 m grid within the area of this HUC.
  The mean elevation is 388.7 m ( 1275.2 ft ) [% in USA = 49.08, % in Region = 32.59]
  The elevation standard deviation is 499.9 m ( 1640.1 ft ) [% in USA = 96.97, % in Region = 80.00]
  The coefficient of variation is 128.6 %.
  The vertical relief is 3545.3 m ( 11631.4 ft ) [% in USA = 99.24, % in Region = 92.59]

  Elevation Percentiles

  	0 %	10 %	20 %	30 %	40 %	50 %	60 %	70 %	80 %	90 %	100 %
  meters	-75.0	-38.0	-8.0	30.0	90.1	183.0	328.2	540.6	787.0	1130.9	3470.3
  feet	-246.1	-124.7	-26.2	98.4	295.6	600.4	1076.8	1773.6	2582.0	3710.3	11385.4

  

  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	337.0	209.4	0.018	0.029	18.47	18.52
  Intermittent Shoreline	237.4	147.5	0.013	0.020	87.49	83.70
  Perennial Streams	3852.6	2394.4	0.206	0.331	40.93	40.00
  Intermittent Streams	9070.4	5637.3	0.484	0.779	67.50	68.89
  Canals	2515.2	1563.2	0.134	0.216	94.93	91.11
  1° roads	387.5	240.8	0.021	0.033	70.58	65.19
  2° roads	0.0	0.0	0.000	0.000	15.35	73.33
  3° roads	764.6	475.2	0.041	0.066	39.84	46.67
  4° roads	14689.4	9129.5	0.784	1.261	21.36	17.78
  Total Roads	15841.5	9845.6	0.845	1.360	21.60	17.78
  Railroads	692.1	430.1	0.037	0.059	45.76	61.48
  Pipes and Powerlines	529.3	328.9	0.028	0.045	48.93	66.67

  
  Of the natural water in this HUC, 68.96% (by length) is intermittent [% in USA = 68.88, % in Region = 75.56]

  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