﻿Report 
  of 
  the 
  State 
  Geologist. 
  717 
  

  

  containing 
  a 
  Rhynchonella. 
  Whether 
  this 
  is 
  Alauoh 
  Chunk 
  rock 
  

   or 
  not 
  I 
  can 
  not 
  say 
  but 
  it 
  is 
  worth 
  further 
  investigation. 
  It 
  is 
  

   possible 
  that 
  it 
  may 
  be 
  found 
  at 
  other 
  points 
  where 
  the 
  Olean 
  

   conglomerate 
  outcrops. 
  

  

  The 
  Region 
  North 
  of 
  Salamanca. 
  

  

  Hitherto 
  I 
  have 
  not 
  spoken 
  of 
  the 
  rocks 
  north 
  of 
  Salamanca. 
  

   Between 
  the 
  most 
  northern 
  outcrops 
  of 
  the 
  conglomerates 
  actually 
  

   seen 
  aloag 
  the 
  Tuna 
  and 
  Ked 
  House 
  creeks 
  and 
  the 
  outcrops 
  north 
  

   of 
  Salamanca 
  there 
  is 
  an 
  interval 
  of 
  four 
  miles 
  in 
  which 
  I 
  did 
  not 
  

   find 
  the 
  conglomerates, 
  but 
  vast 
  quantities 
  strew 
  the 
  north 
  face 
  

   of 
  the 
  hill 
  south 
  of 
  Salamanca, 
  and 
  many 
  deep 
  ravines 
  extend 
  

   north 
  from 
  the 
  Red 
  House 
  creek, 
  so 
  that 
  I 
  have 
  no 
  doubt 
  bat 
  

   that 
  a 
  more 
  careful 
  survey 
  would 
  reveal 
  them, 
  thus 
  making 
  a 
  

   complete 
  connection 
  with 
  the 
  rocks 
  north 
  of 
  Salamanca. 
  One 
  

   mile 
  north 
  of 
  Salamanca 
  and 
  east 
  of 
  the 
  water 
  reservoir 
  the 
  

   ridge 
  is 
  capped 
  by 
  a 
  massive 
  conglomerate 
  twenty-five 
  to 
  thirty 
  

   feet 
  thick, 
  whose 
  top 
  is 
  211u 
  feet 
  A. 
  T. 
  The 
  upper 
  layer 
  

   is 
  a 
  yellowish 
  fine-grained 
  sandstone 
  and 
  has 
  upon 
  the 
  upper 
  

   surface 
  numerous 
  impressions 
  of 
  Hij?podoj>hycu£. 
  In 
  my 
  hurried 
  

   visit 
  I 
  did 
  not 
  see 
  any 
  conglomerate 
  below 
  this. 
  About 
  two 
  

   miles 
  north 
  of 
  this- 
  is 
  the 
  celebrated 
  rock 
  city, 
  elevation 
  2190 
  

   feet 
  A. 
  T., 
  showing 
  a 
  dip 
  of 
  about 
  twenty-five 
  feet 
  per 
  mile. 
  

   About 
  one-half 
  mile 
  northwest 
  of 
  Mr. 
  Brown's 
  house 
  I 
  found 
  an 
  

   outcrop 
  of 
  conglomerate, 
  nine 
  feet 
  thick, 
  top 
  at 
  2147 
  feet 
  

   A. 
  T. 
  There 
  is 
  some 
  uncertainty 
  as 
  to 
  just 
  where 
  the 
  Pennsyl- 
  

   vania 
  geologists 
  took 
  their 
  elevation 
  of 
  " 
  2190 
  top," 
  but 
  from 
  the 
  

   best 
  information 
  obtainable 
  I 
  judge 
  it 
  was 
  east 
  of 
  this 
  point. 
  If 
  

   so 
  this 
  may 
  be 
  a 
  lower 
  rock 
  than 
  the 
  " 
  rock 
  city 
  " 
  and 
  possibly 
  

   may 
  represent 
  the 
  Warren 
  sandstone 
  lying 
  below 
  the 
  Pope 
  

   Hollow 
  conglomerate. 
  According 
  to 
  these 
  elevations 
  there 
  is 
  

   an 
  interval 
  of 
  twenty 
  feet. 
  No 
  conglomerate 
  was 
  with 
  certainty 
  

   found 
  below 
  this. 
  

  

  Just 
  west 
  of 
  the 
  road 
  near 
  the 
  township 
  line 
  and 
  one 
  -quarter 
  

   of 
  a 
  mile 
  south 
  of 
  Horace 
  Brown's 
  house 
  is 
  an 
  outcrop 
  of 
  red 
  

   shale 
  overlaid 
  by 
  a 
  green 
  sandy 
  shale 
  (top 
  of 
  red 
  shale 
  2018 
  

   feet). 
  This 
  would 
  put 
  it 
  175 
  feet 
  below 
  the 
  top 
  of 
  the 
  conglom- 
  

   erate. 
  At 
  Pope 
  Hollow 
  this 
  interval 
  is 
  200 
  feet 
  ; 
  at 
  the 
  Elko 
  

  

  