Weiser -- Cataloging Unit 17050124

• Middle Snake-Boise Accounting Unit 170501
  
• Middle Snake Subregion 1705
  
• 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 4309.4 km² ( 1664.6 mi² ) [% in USA = 69.49, % in Region = 75.80]
  The area from the USGS is 1660 mi².
  

  II. Flow Connections (upstream and downstream units)

  III. Named places in this watershed (total = 802)

  IV. Elevation Analysis

  This analysis is based on 1722016 elevations on a 50 m grid within the area of this HUC.
  The mean elevation is 1238.4 m ( 4062.9 ft ) [% in USA = 77.78, % in Region = 56.16]
  The elevation standard deviation is 362.4 m ( 1189.0 ft ) [% in USA = 88.44, % in Region = 68.49]
  The coefficient of variation is 29.3 %.
  The vertical relief is 1838.1 m ( 6030.4 ft ) [% in USA = 84.32, % in Region = 58.90]

  Elevation Percentiles

  	0 %	10 %	20 %	30 %	40 %	50 %	60 %	70 %	80 %	90 %	100 %
  meters	654.0	849.6	932.0	999.8	1049.0	1138.8	1249.1	1394.8	1537.8	1790.2	2492.1
  feet	2145.6	2787.4	3057.7	3280.1	3441.6	3736.2	4098.0	4576.1	5045.2	5873.3	8176.1

  

  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	80.1	49.8	0.019	0.030	18.81	22.83
  Intermittent Shoreline	1.6	1.0	0.000	0.001	41.12	56.16
  Perennial Streams	1982.1	1231.9	0.460	0.740	77.78	54.79
  Intermittent Streams	1142.4	710.0	0.265	0.427	39.89	49.77
  Canals	78.2	48.6	0.018	0.029	72.52	69.86
  1° roads	0.0	0.0	0.000	0.000	30.84	59.82
  2° roads	119.5	74.3	0.028	0.045	53.53	74.89
  3° roads	25.7	16.0	0.006	0.010	7.48	22.83
  4° roads	3101.0	1927.3	0.720	1.158	18.00	27.85
  Total Roads	3246.2	2017.5	0.753	1.212	16.58	26.94
  Railroads	143.2	89.0	0.033	0.053	42.25	65.30
  Pipes and Powerlines	86.9	54.0	0.020	0.032	38.75	49.32

  
  Of the natural water in this HUC, 35.68% (by length) is intermittent [% in USA = 39.13, % in Region = 51.14]

  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