Locality l\.2 (Grabau 1 s locality) is described in pages 202-204 
of Grabau 1 s '’Stratigraphy of the Traverse group of Michigan,” in 
Lane*s Report of the State Board of Geological Survey for the 
Year 1901 (publication date 1902). According to Grabau (p. 202) 
locality L\.2 is the same as Winchell's locality 861. The Petoskey 
Portland Cement Company (now owned and operated by the Penn-Dixie 
Portland Cement Co.) cut back the shore exposures of Winchell ! s 
time in the development of the quarry wall. Letters A - I after 
Grabau*s locality number l\.2 are units in Grabau*s section. In 
my opinion the section, described and measured by Grabau, was 
somewhere near the eastern end of the Penn-Dixie quarry. I be¬ 
lieve that Unit D is most likely PoMYs ”Lower Blue Shale” of 
the Gravel Point formation. Grabau (p. 203) states that unit D 
has a thickness of 3 feet, which is greater than that noted by 
other workers. • 
