Middle Salmon-Chamberlain -- Cataloging Unit 17060207

• Salmon Accounting Unit 170602
  
• 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 4437.0 km² ( 1713.9 mi² ) [% in USA = 71.44, % in Region = 77.63]
  The area from the USGS is 1700 mi².
  

  II. Flow Connections (upstream and downstream units)

  III. Named places in this watershed (total = 1411)

  IV. Elevation Analysis

  This analysis is based on 1772746 elevations on a 50 m grid within the area of this HUC.
  The mean elevation is 1837.4 m ( 6028.1 ft ) [% in USA = 90.57, % in Region = 87.67]
  The elevation standard deviation is 402.8 m ( 1321.5 ft ) [% in USA = 91.71, % in Region = 78.54]
  The coefficient of variation is 21.9 %.
  The vertical relief is 2193.8 m ( 7197.4 ft ) [% in USA = 91.76, % in Region = 79.45]

  Elevation Percentiles

  	0 %	10 %	20 %	30 %	40 %	50 %	60 %	70 %	80 %	90 %	100 %
  meters	609.0	1222.0	1509.7	1705.2	1824.3	1908.0	2007.7	2085.6	2183.4	2293.9	2802.8
  feet	1998.0	4009.1	4953.0	5594.4	5985.2	6259.8	6586.9	6842.4	7163.3	7525.8	9195.4

  

  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	214.5	133.3	0.048	0.078	35.10	45.21
  Intermittent Shoreline	0.0	0.0	0.000	0.000	26.95	43.84
  Perennial Streams	3063.6	1904.1	0.690	1.111	96.35	89.95
  Intermittent Streams	139.4	86.7	0.031	0.051	10.80	10.96
  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	606.1	376.7	0.137	0.220	0.90	1.83
  Total Roads	606.1	376.7	0.137	0.220	0.85	1.83
  Railroads	0.0	0.0	0.000	0.000	12.60	28.31
  Pipes and Powerlines	81.4	50.6	0.018	0.030	36.33	46.58

  
  Of the natural water in this HUC, 4.08% (by length) is intermittent [% in USA = 9.71, % in Region = 10.50]

  VI. Other sites

  • EPA- Surf Your Watershed - Index of Watershed Indicators
  • USGS- Science in Your Watershed - Selected Realtime Streamflow Stations
  • CTIC- Known Your Watershed

  ---

  1999 SEPT 4, Last updated on 2003 JAN 23
  
  D.L. Gustafson, dlg@rapid.msu.montana.edu