Little Lost -- Cataloging Unit 17040217

• Upper Snake Accounting Unit 170402
  
• Upper Snake Subregion 1704
  
• 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 2500.0 km² ( 965.7 mi² ) [% in USA = 33.73, % in Region = 42.92]
  The area from the USGS is 957 mi².
  

  II. Flow Connections (upstream and downstream units)

  III. Named places in this watershed (total = 329)

  IV. Elevation Analysis

  This analysis is based on 998878 elevations on a 50 m grid within the area of this HUC.
  The mean elevation is 2149.3 m ( 7051.4 ft ) [% in USA = 95.59, % in Region = 95.89]
  The elevation standard deviation is 439.1 m ( 1440.6 ft ) [% in USA = 94.03, % in Region = 87.21]
  The coefficient of variation is 20.4 %.
  The vertical relief is 2072.1 m ( 6798.1 ft ) [% in USA = 89.06, % in Region = 69.86]

  Elevation Percentiles

  	0 %	10 %	20 %	30 %	40 %	50 %	60 %	70 %	80 %	90 %	100 %
  meters	1463.0	1576.3	1720.7	1882.7	1974.5	2089.0	2234.9	2392.7	2565.1	2766.8	3535.1
  feet	4799.8	5171.5	5645.3	6176.8	6477.9	6853.6	7332.3	7850.0	8415.6	9077.3	11598.0

  

  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	7.9	4.9	0.003	0.005	6.21	5.48
  Intermittent Shoreline	0.0	0.0	0.000	0.000	26.95	43.84
  Perennial Streams	680.4	422.9	0.272	0.438	52.39	32.42
  Intermittent Streams	1257.0	781.2	0.503	0.809	69.68	79.45
  Canals	45.0	27.9	0.018	0.029	72.34	68.95
  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	23.9	14.8	0.010	0.015	10.80	30.14
  4° roads	670.3	416.6	0.268	0.431	1.80	4.57
  Total Roads	694.1	431.4	0.278	0.447	1.61	4.57
  Railroads	0.0	0.0	0.000	0.000	12.60	28.31
  Pipes and Powerlines	35.3	21.9	0.014	0.023	29.99	38.81

  
  Of the natural water in this HUC, 64.62% (by length) is intermittent [% in USA = 65.23, % in Region = 77.17]

  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