Lower Humboldt -- Cataloging Unit 16040108

• Humboldt Accounting Unit 160401
  
• Black Rock Desert-Humboldt Subregion 1604
  
• Great Basin Region 16 (There are 71 cataloging units in this region.)
  The state composition by area is 100.0% Nevada.
  

  I. Graphical Locater Maps

  Roads

  Water Only

  8 Digit HUCs

  The area of this HUC in these maps is 6784.6 km² ( 2620.7 mi² ) [% in USA = 91.00, % in Region = 73.24]
  The area from the USGS is 2590 mi².
  

  II. Flow Connections (upstream and downstream units)

  III. Named places in this watershed (total = 1014)

  IV. Elevation Analysis

  This analysis is based on 2710146 elevations on a 50 m grid within the area of this HUC.
  The mean elevation is 1482.9 m ( 4865.1 ft ) [% in USA = 82.85, % in Region = 11.27]
  The elevation standard deviation is 255.0 m ( 836.6 ft ) [% in USA = 77.97, % in Region = 30.99]
  The coefficient of variation is 17.2 %.
  The vertical relief is 1811.5 m ( 5943.2 ft ) [% in USA = 83.37, % in Region = 50.70]

  Elevation Percentiles

  	0 %	10 %	20 %	30 %	40 %	50 %	60 %	70 %	80 %	90 %	100 %
  meters	1178.5	1229.0	1284.4	1317.0	1352.5	1402.0	1463.5	1544.0	1656.8	1834.0	2990.0
  feet	3866.4	4032.1	4213.9	4320.8	4437.3	4599.7	4801.5	5065.6	5435.6	6017.0	9809.6

  

  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	334.1	207.6	0.049	0.079	35.62	83.10
  Intermittent Shoreline	12.3	7.7	0.002	0.003	62.15	57.75
  Perennial Streams	616.0	382.9	0.091	0.146	24.06	59.15
  Intermittent Streams	4255.0	2644.5	0.627	1.009	82.57	61.97
  Canals	384.1	238.7	0.057	0.091	86.50	74.65
  1° roads	259.5	161.3	0.038	0.062	85.08	94.37
  2° roads	39.0	24.2	0.006	0.009	22.12	36.62
  3° roads	111.8	69.5	0.016	0.027	17.76	35.21
  4° roads	5923.1	3681.2	0.873	1.405	27.38	81.69
  Total Roads	6333.4	3936.2	0.934	1.502	26.58	77.46
  Railroads	316.4	196.7	0.047	0.075	55.76	85.92
  Pipes and Powerlines	201.6	125.3	0.030	0.048	50.73	83.10

  
  Of the natural water in this HUC, 81.79% (by length) is intermittent [% in USA = 80.44, % in Region = 42.25]

  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