Havasu-Mohave Lakes -- Cataloging Unit 15030101

• Lower Colorado Accounting Unit 150301
  
• Lower Colorado Subregion 1503
  
• Lower Colorado Region 15 (There are 85 cataloging units in this region.)
  The state composition by area is 43.1% Arizona, 36.7% California, 20.3% Nevada.
  

  I. Graphical Locater Maps

  Roads

  Water Only

  8 Digit HUCs

  The area of this HUC in these maps is 7202.6 km² ( 2782.1 mi² ) [% in USA = 92.94, % in Region = 92.94]
  The area from the USGS is 2740 mi².
  

  II. Flow Connections (upstream and downstream units)

  III. Named places in this watershed (total = 956)

  IV. Elevation Analysis

  This analysis is based on 2876121 elevations on a 50 m grid within the area of this HUC.
  The mean elevation is 498.7 m ( 1636.1 ft ) [% in USA = 56.42, % in Region = 12.94]
  The elevation standard deviation is 258.7 m ( 848.7 ft ) [% in USA = 78.40, % in Region = 55.29]
  The coefficient of variation is 51.9 %.
  The vertical relief is 1547.8 m ( 5078.0 ft ) [% in USA = 77.17, % in Region = 42.35]

  Elevation Percentiles

  	0 %	10 %	20 %	30 %	40 %	50 %	60 %	70 %	80 %	90 %	100 %
  meters	86.8	197.0	258.0	329.9	394.5	453.1	524.7	607.9	705.3	866.7	1634.6
  feet	284.8	646.3	846.4	1082.3	1294.3	1486.5	1721.4	1994.4	2313.9	2843.5	5362.8

  

  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	1005.3	624.8	0.140	0.225	68.74	97.65
  Intermittent Shoreline	1.0	0.6	0.000	0.000	32.50	21.18
  Perennial Streams	48.8	30.3	0.007	0.011	6.25	43.53
  Intermittent Streams	5868.8	3647.5	0.815	1.311	94.32	80.00
  Canals	42.3	26.3	0.006	0.009	60.02	68.24
  1° roads	49.4	30.7	0.007	0.011	50.88	61.18
  2° roads	88.0	54.7	0.012	0.020	30.27	57.65
  3° roads	206.3	128.2	0.029	0.046	29.51	76.47
  4° roads	4457.7	2770.5	0.619	0.996	12.51	44.71
  Total Roads	4801.4	2984.1	0.667	1.073	12.88	47.06
  Railroads	48.1	29.9	0.007	0.011	18.19	45.88
  Pipes and Powerlines	347.5	216.0	0.048	0.078	69.45	90.59

  
  Of the natural water in this HUC, 84.78% (by length) is intermittent [% in USA = 83.37, % in Region = 11.76]

  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