Upper North Fork Clearwater -- Cataloging Unit 17060307

• Clearwater Accounting Unit 170603
  
• Lower Snake Subregion 1706
  
• Pacific Northwest Region 17 (There are 219 cataloging units in this region.)
  The state composition by area is 100.0% Idaho.
  

  I. Graphical Locater Maps

  Roads

  Water Only

  8 Digit HUCs

  The area of this HUC in these maps is 3360.3 km² ( 1298.0 mi² ) [% in USA = 52.91, % in Region = 60.73]
  The area from the USGS is 1320 mi².
  

  II. Flow Connections (upstream and downstream units)

  III. Named places in this watershed (total = 1011)

  IV. Elevation Analysis

  This analysis is based on 1341744 elevations on a 50 m grid within the area of this HUC.
  The mean elevation is 1456.3 m ( 4777.8 ft ) [% in USA = 82.19, % in Region = 68.95]
  The elevation standard deviation is 290.0 m ( 951.4 ft ) [% in USA = 81.76, % in Region = 43.84]
  The coefficient of variation is 19.9 %.
  The vertical relief is 1825.4 m ( 5988.8 ft ) [% in USA = 83.89, % in Region = 56.62]

  Elevation Percentiles

  	0 %	10 %	20 %	30 %	40 %	50 %	60 %	70 %	80 %	90 %	100 %
  meters	548.0	1089.9	1214.3	1293.3	1384.1	1463.0	1540.0	1624.4	1710.6	1829.0	2373.4
  feet	1797.9	3575.7	3983.9	4243.1	4541.0	4799.8	5052.4	5329.3	5612.1	6000.6	7786.7

  

  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	40.8	25.3	0.012	0.020	14.31	16.89
  Intermittent Shoreline	0.0	0.0	0.000	0.000	26.95	43.84
  Perennial Streams	2306.3	1433.4	0.686	1.104	96.16	89.50
  Intermittent Streams	179.1	111.3	0.053	0.086	13.83	18.26
  Canals	0.0	0.0	0.000	0.000	35.62	23.74
  1° roads	0.0	0.0	0.000	0.000	30.84	59.82
  2° roads	0.0	0.0	0.000	0.000	15.35	29.22
  3° roads	0.0	0.0	0.000	0.000	4.07	15.53
  4° roads	1932.7	1201.2	0.575	0.925	10.42	18.26
  Total Roads	1932.7	1201.2	0.575	0.925	8.86	17.81
  Railroads	0.0	0.0	0.000	0.000	12.60	28.31
  Pipes and Powerlines	1.1	0.7	0.000	0.001	9.76	14.16

  
  Of the natural water in this HUC, 7.09% (by length) is intermittent [% in USA = 12.70, % in Region = 17.81]

  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