Amite -- Cataloging Unit 08070202

• Lake Maurepas Accounting Unit 080702
  
• Lower Mississippi-Lake Maurepas Subregion 0807
  
• Lower Mississippi Region 08 (There are 82 cataloging units in this region.)
  The state composition by area is 67.4% Louisiana, 32.6% Mississippi.
  

  I. Graphical Locater Maps

  Roads

  Water Only

  8 Digit HUCs

  The area of this HUC in these maps is 4617.6 km² ( 1783.6 mi² ) [% in USA = 72.95, % in Region = 81.71]
  The area from the USGS is 1890 mi².
  

  II. Flow Connections (upstream and downstream units)

  III. Named places in this watershed (total = 3019)

  IV. Elevation Analysis

  This analysis is based on 1844884 elevations on a 50 m grid within the area of this HUC.
  The mean elevation is 59.2 m ( 194.2 ft ) [% in USA = 9.71, % in Region = 48.78]
  The elevation standard deviation is 43.3 m ( 142.1 ft ) [% in USA = 34.44, % in Region = 93.90]
  The coefficient of variation is 73.1 %.
  The vertical relief is 157.7 m ( 517.4 ft ) [% in USA = 19.94, % in Region = 87.80]

  Elevation Percentiles

  	0 %	10 %	20 %	30 %	40 %	50 %	60 %	70 %	80 %	90 %	100 %
  meters	0.0	7.0	13.0	21.0	36.6	57.9	75.0	91.0	106.0	121.0	157.7
  feet	0.0	23.0	42.7	68.9	120.1	190.0	246.1	298.6	347.8	397.0	517.4

  

  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	620.1	385.4	0.134	0.216	66.89	46.34
  Intermittent Shoreline	6.7	4.1	0.001	0.002	59.21	59.76
  Perennial Streams	2188.9	1360.4	0.474	0.763	79.20	80.49
  Intermittent Streams	2011.9	1250.4	0.436	0.701	62.43	52.44
  Canals	38.5	23.9	0.008	0.013	64.05	35.37
  1° roads	99.8	62.0	0.022	0.035	71.58	71.95
  2° roads	95.9	59.6	0.021	0.033	43.39	21.95
  3° roads	1147.3	713.1	0.248	0.400	96.21	89.02
  4° roads	6860.4	4263.8	1.486	2.391	78.02	92.68
  Total Roads	8203.4	5098.5	1.777	2.858	83.70	92.68
  Railroads	169.7	105.5	0.037	0.059	45.62	28.05
  Pipes and Powerlines	225.8	140.3	0.049	0.079	69.92	47.56

  
  Of the natural water in this HUC, 41.81% (by length) is intermittent [% in USA = 44.77, % in Region = 51.22]

  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