﻿F. 
  B. 
  Taylor 
  — 
  Niagara 
  and 
  the 
  Great 
  Lakes. 
  255 
  

  

  In 
  the 
  Superior 
  Basin. 
  — 
  The 
  Chippewa 
  beach 
  rises 
  in 
  140 
  

   miles 
  from 
  1134 
  feet 
  above 
  sea 
  level 
  at 
  Duluth 
  to 
  1207 
  feet 
  at 
  

   Mt. 
  Josephine, 
  near 
  Grand 
  Portage 
  on 
  the 
  north 
  shore, 
  and 
  in 
  

   172 
  miles 
  to 
  1190 
  feet 
  at 
  L'Anse. 
  Then 
  from 
  1190 
  feet 
  at 
  

   Marquette 
  in 
  about 
  150 
  miles 
  it 
  drops 
  to 
  1014 
  feet 
  at 
  Sanlt 
  Ste. 
  

   Marie. 
  Cook's 
  Mill 
  is 
  close 
  to 
  the 
  north 
  shore 
  of 
  Lake 
  Michi- 
  

   gan 
  and 
  is 
  about 
  40 
  miles 
  south 
  from 
  Old 
  Munising. 
  Along 
  

   the 
  comparatively 
  low 
  south 
  shore 
  east 
  of 
  Marquette 
  we 
  can 
  

   only 
  conjecture 
  the 
  probable 
  height 
  of 
  the 
  beach. 
  Ground 
  

   near 
  Old 
  Munising 
  was 
  washed 
  over 
  up 
  to 
  at 
  least 
  250 
  feet. 
  

   Scaffold 
  Hill 
  south 
  of 
  Munising 
  station, 
  rises 
  a 
  little 
  higher, 
  

   but 
  has 
  not 
  been 
  examined. 
  If 
  the 
  beach 
  rises 
  northward 
  from 
  

   Cook's 
  Mill 
  at 
  the 
  same 
  rate 
  that 
  it 
  does 
  from 
  Mackinac 
  to 
  

   Sanlt 
  Ste. 
  Marie 
  it 
  would 
  be 
  about 
  340 
  feet 
  above 
  Lake 
  

   Superior 
  (940 
  feet 
  above 
  the 
  sea) 
  at 
  Old 
  Munising. 
  Then 
  

   from 
  the 
  Chippewa 
  beach 
  five 
  miles 
  west 
  of 
  Marquette 
  to 
  this 
  

   point 
  the 
  descent 
  would 
  be 
  about 
  five 
  feet 
  per 
  mile 
  eastward. 
  

  

  On 
  the 
  north 
  Superior 
  shore, 
  besides 
  at 
  Duluth 
  and 
  Sault 
  

   Ste. 
  Marie, 
  the 
  Chippewa 
  beach 
  has 
  been 
  reported 
  probably 
  at 
  

   only 
  one 
  place, 
  on 
  Mt. 
  Josephine 
  at 
  1207 
  feet. 
  The 
  following 
  

   are 
  the 
  principal 
  high 
  beaches 
  observed 
  by 
  Lawson 
  on 
  the 
  north 
  

   Superior 
  shore 
  given 
  in 
  their 
  order 
  from 
  west 
  to 
  east, 
  Lake 
  

   Superior 
  being 
  602 
  feet 
  above 
  sea 
  level. 
  Those 
  marked 
  (h) 
  

   are 
  probably 
  the 
  Chippewa 
  or 
  highest 
  post-glacial 
  beach. 
  

  

  Feet 
  above 
  Lake 
  Superior. 
  

  

  Duluth, 
  West, 
  (h) 
  534 
  

  

  Duluth, 
  10th 
  Ave., 
  East, 
  (A) 
  534.8 
  

  

  Hardy's 
  School 
  House 
  509.5 
  

  

  Two 
  Harbors, 
  D. 
  & 
  I. 
  R. 
  R 
  475 
  

  

  Grand 
  Portage* 
  458 
  

  

  Mt. 
  Josephine, 
  (h) 
  607.3 
  

  

  Kaministiquia 
  (great 
  delta) 
  455.1 
  

  

  Jackfish 
  Bay 
  " 
  418.3 
  

  

  Sault 
  Ste. 
  Marie, 
  (h) 
  413.9 
  

  

  Jackfish 
  Bay 
  is 
  the 
  farthest 
  north. 
  But 
  the 
  observations 
  of 
  

   Lawson 
  appear 
  to 
  show 
  the 
  Nipissing 
  beach 
  on 
  the 
  north 
  shore 
  

   at 
  about 
  100 
  feet 
  above 
  the 
  lake. 
  It 
  follows 
  that 
  the 
  Cham- 
  

   plain 
  uplift 
  raised 
  this 
  beach 
  and 
  necessarily 
  all 
  others 
  lying 
  

   above 
  it 
  relatively 
  125 
  feet 
  from 
  Duluth 
  where 
  the 
  Nipissing 
  

   beach 
  is 
  now 
  submerged 
  about 
  25 
  feet. 
  The 
  Nipissing 
  beach 
  

   rises 
  northeastward 
  a 
  little 
  over 
  six 
  inches 
  per 
  mile. 
  The 
  

   Chippewa 
  beach 
  rises 
  from 
  Duluth 
  to 
  Mt. 
  Josephine 
  about 
  

   seven 
  inches 
  per 
  mile. 
  If 
  the 
  Chippewa 
  beach 
  continues 
  in 
  

   the 
  same 
  plane 
  to 
  Jackfish 
  Bay 
  its 
  height 
  would 
  be 
  about 
  1260 
  

   feet 
  above 
  sea 
  level, 
  or 
  about 
  340 
  feet 
  above 
  Lawson's 
  highest 
  

   recorded 
  beach 
  at 
  the 
  latter 
  place. 
  

  

  * 
  Prof. 
  Lawson 
  does 
  not 
  give 
  this 
  terrace 
  in 
  his 
  table. 
  

  

  