Black-Presque Isle -- Cataloging Unit 04020101

• Southcentral Lake Superior Accounting Unit 040201
  
• Southern Lake Superior-Lake Superior Subregion 0402
  
• Great Lakes Region 04 (There are 111 cataloging units in this region.)
  The state composition by area is 92.3% Michigan, 7.7% Wisconsin.
  

  I. Graphical Locater Maps

  Roads

  Water Only

  8 Digit HUCs

  The area of this HUC in these maps is 2641.0 km² ( 1020.1 mi² ) [% in USA = 37.90, % in Region = 54.05]
  The area from the USGS is 1030 mi².
  

  II. Flow Connections (upstream and downstream units)

  III. Named places in this watershed (total = 775)

  IV. Elevation Analysis

  This analysis is based on 1055155 elevations on a 50 m grid within the area of this HUC.
  The mean elevation is 404.0 m ( 1325.4 ft ) [% in USA = 50.12, % in Region = 90.99]
  The elevation standard deviation is 94.9 m ( 311.3 ft ) [% in USA = 54.38, % in Region = 83.78]
  The coefficient of variation is 23.5 %.
  The vertical relief is 381.0 m ( 1250.0 ft ) [% in USA = 46.80, % in Region = 79.28]

  Elevation Percentiles

  	0 %	10 %	20 %	30 %	40 %	50 %	60 %	70 %	80 %	90 %	100 %
  meters	183.0	247.4	313.0	360.2	399.0	423.2	457.0	481.2	490.0	506.0	564.0
  feet	600.4	811.7	1026.9	1181.7	1309.0	1388.4	1499.3	1578.7	1607.6	1660.1	1850.4

  

  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	521.5	324.1	0.197	0.318	80.44	64.86
  Intermittent Shoreline	7.3	4.5	0.003	0.004	68.83	95.50
  Perennial Streams	1476.0	917.3	0.559	0.899	87.87	90.09
  Intermittent Streams	514.7	319.9	0.195	0.314	30.98	62.16
  Canals	0.0	0.0	0.000	0.000	35.62	36.04
  1° roads	0.0	0.0	0.000	0.000	30.84	21.62
  2° roads	39.6	24.6	0.015	0.024	34.77	43.24
  3° roads	95.1	59.1	0.036	0.058	36.38	17.12
  4° roads	2038.1	1266.7	0.772	1.242	20.65	11.71
  Total Roads	2172.8	1350.4	0.823	1.324	20.23	10.81
  Railroads	141.6	88.0	0.054	0.086	61.72	33.33
  Pipes and Powerlines	9.4	5.8	0.004	0.006	14.92	16.22

  
  Of the natural water in this HUC, 20.72% (by length) is intermittent [% in USA = 25.39, % in Region = 51.35]

  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