Little Salmon -- Cataloging Unit 17060210

• 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 1509.1 km² ( 582.9 mi² ) [% in USA = 9.05, % in Region = 10.50]
  The area from the USGS is 582 mi².
  

  II. Flow Connections (upstream and downstream units)

  III. Named places in this watershed (total = 518)

  IV. Elevation Analysis

  This analysis is based on 603229 elevations on a 50 m grid within the area of this HUC.
  The mean elevation is 1649.1 m ( 5410.4 ft ) [% in USA = 86.64, % in Region = 79.91]
  The elevation standard deviation is 414.7 m ( 1360.5 ft ) [% in USA = 92.37, % in Region = 83.56]
  The coefficient of variation is 25.1 %.
  The vertical relief is 2186.3 m ( 7172.8 ft ) [% in USA = 91.57, % in Region = 79.00]

  Elevation Percentiles

  	0 %	10 %	20 %	30 %	40 %	50 %	60 %	70 %	80 %	90 %	100 %
  meters	609.0	1183.7	1267.9	1376.0	1490.9	1612.0	1761.8	1934.2	2071.0	2209.9	2795.3
  feet	1998.0	3883.5	4159.7	4514.4	4891.3	5288.6	5780.1	6345.7	6794.5	7250.2	9170.8

  

  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	48.0	29.8	0.032	0.051	26.95	36.53
  Intermittent Shoreline	0.0	0.0	0.000	0.000	26.95	43.84
  Perennial Streams	984.7	612.0	0.652	1.050	94.93	85.39
  Intermittent Streams	255.1	158.6	0.169	0.272	27.81	40.18
  Canals	18.5	11.5	0.012	0.020	68.40	64.38
  1° roads	0.0	0.0	0.000	0.000	30.84	59.82
  2° roads	62.8	39.0	0.042	0.067	73.42	91.78
  3° roads	13.9	8.7	0.009	0.015	10.14	28.31
  4° roads	1299.2	807.5	0.861	1.385	26.62	43.84
  Total Roads	1375.9	855.2	0.912	1.467	25.34	43.84
  Railroads	0.0	0.0	0.000	0.000	12.60	28.31
  Pipes and Powerlines	14.5	9.0	0.010	0.015	23.73	33.33

  
  Of the natural water in this HUC, 19.81% (by length) is intermittent [% in USA = 24.30, % in Region = 38.36]

  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