Upper Salmon -- Cataloging Unit 17060201

• 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 6289.7 km² ( 2429.5 mi² ) [% in USA = 88.68, % in Region = 94.06]
  The area from the USGS is 2410 mi².
  

  II. Flow Connections (upstream and downstream units)

  III. Named places in this watershed (total = 1334)

  IV. Elevation Analysis

  This analysis is based on 2512389 elevations on a 50 m grid within the area of this HUC.
  The mean elevation is 2313.8 m ( 7591.1 ft ) [% in USA = 97.73, % in Region = 98.63]
  The elevation standard deviation is 347.4 m ( 1139.7 ft ) [% in USA = 87.16, % in Region = 62.10]
  The coefficient of variation is 15.0 %.
  The vertical relief is 2132.4 m ( 6996.0 ft ) [% in USA = 90.48, % in Region = 74.89]

  Elevation Percentiles

  	0 %	10 %	20 %	30 %	40 %	50 %	60 %	70 %	80 %	90 %	100 %
  meters	1463.0	1866.6	2015.8	2130.1	2213.5	2313.1	2403.4	2502.3	2621.0	2762.2	3595.4
  feet	4799.8	6123.9	6613.4	6988.4	7262.1	7588.8	7885.1	8209.5	8599.0	9062.2	11795.8

  

  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	346.5	215.4	0.055	0.089	38.37	49.32
  Intermittent Shoreline	5.2	3.2	0.001	0.001	51.49	67.12
  Perennial Streams	2947.7	1832.0	0.469	0.754	78.54	56.62
  Intermittent Streams	2231.4	1386.8	0.355	0.571	51.40	61.64
  Canals	39.9	24.8	0.006	0.010	60.92	49.77
  1° roads	0.0	0.0	0.000	0.000	30.84	59.82
  2° roads	67.7	42.1	0.011	0.017	28.56	51.60
  3° roads	160.7	99.9	0.026	0.041	26.62	53.42
  4° roads	1756.6	1091.7	0.279	0.449	1.94	5.02
  Total Roads	1984.9	1233.6	0.316	0.508	2.04	5.48
  Railroads	0.0	0.0	0.000	0.000	12.60	28.31
  Pipes and Powerlines	0.0	0.0	0.000	0.000	8.67	12.79

  
  Of the natural water in this HUC, 40.44% (by length) is intermittent [% in USA = 43.39, % in Region = 56.16]

  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