124 
FLORIDA GEOLOGICAL SURVEY—I4TH ANNUAL REPORT 
Florida, in which it is believed that the Upper Cretaceous is wanting 
and that the drill passes from the Eocene limestones directly into Lower 
Cretaceous limestones. 
TAYLOR COUNTY 
The Chattahoochee limestone is found at or near the surface over a 
considerable part of Taylor County. Near the east line of the county 
the Eocene limestone may possibly be found at the surface. This, how¬ 
ever, is merely a conjecture and has not been proven. 
The Alum Bluff formation is possibly present locally in the county 
and Pleistocene deposits may be found near the coast. 
Following is the log of a well at Perry, in this county. Unfortunately 
no samples were obtained and the age of the deeper limestones is un¬ 
known : 
Depth in feet. 
Dry sand . 0- 12 
Sand with water .. 12- 14 
Soft limestone . 14- 16 
Sand and water .......1.... 16- 26 
Decayed limestone, boulders, water........ 26- 180 
Solid sand rock, very hard........ 180- 260 
Honeycombed rock, containing water......... 260- 270 
Hard, white and brown, flint rock...... 270- 430 
Honeycombed rock, containing water....... 430- 440 
Gray and white flint rock, very hard, with layers of white material 
like chalk. Water at 543 feet. 440- 590 
Cavity . 590- 592 
Very hard, solid rock... 592- 596 
Hard, flint rock . 596- 600 
Honeycombed rock, with water. 600- 606 
Hard, blue clay . 606- 612 
Hard rock. At depth of 1,000 feet small stream of water, with live-oak 
leaves. 4-inch pipe put in at this depth and driven in solid rock, cut¬ 
ting off all water above. 612-1000 
Hard, flint rock, with streaks of white material resembling chalk. Flow 
at this depth from 15 to 25 gallons per minute.;!.Jit-— 1000-1207 
UNION COUNTY 
Union County lies south of Baker County, in northeastern Florida. 
Rocks of probably Lower Miocene age of the Alum Bluff formation are 
exposed in the southwestern part of the county, and probably underlie 
all of the county. Formations of later age than Lower Miocene may 
come into the eastern part of the county, although the surface there is 
very level, affording few exposures. 
A well drilled for J. N. Townsend at Lake Butler reached a depth of 
about 600 feet. No log of this well, however, is available. 
