GEOLOGY BETWEEN THE OCKLOCKNEE AND 
AUCILLA RIVERS IN FLORIDA. 
E. H. SELLARDS. 
INTRODUCTION. 
LOCATION AND AREA 
The area to which this report relates lies between the Ocklocknee 
and Aucilla rivers, and extends from the Florida-Georgia state line 
to the Gulf of Mexico (map, fig. 2). Three counties are included, 
namely, Leon, Jefferson and Wakulla. The area of Leon County 
is approximately 730 square miles or 467,200 acres, that of Jefferson 
593 square miles or 379,520 acres, and that of Wakulla, 601 square 
miles or 389,640 acres, making a total area of 1,924 square miles or 
1,231,360 acres. Leon County was established December 29, 1824, 
and Jefferson County January 20, 1827, under the territorial gov¬ 
ernorship of William P. Duval. The County of Wakulla was 
established March ix, 1843, under the second territorial governor¬ 
ship of Richard K. Call. The three counties are thus among the 
oldest counties of the State, having been established while Florida 
was still a Territory. 
The history of the settlement and subsequent development of 
Leon County dates from about the time of the purchase of Florida 
from Spain in 1821. The area known as Florida at one time ex¬ 
tended as far west as the Mississippi River and included approxi¬ 
mately the southern half of what are now the states of Alabama and 
Mississippi. That portion from the Atlantic Ocean west to the 
Apalachicola River was known as East Florida, while that from the 
Apalachicola to the Mississippi River was known as West Florida. 
St. Augustine and Pensacola were the respective seats of govern¬ 
ment. 
General Andrew Jackson was appointed Military Governor of 
the Floridas upon the purchase from Spain and served as such until 
1822. During this year Jackson resigned and President Monroe 
appointed William P. Duval as first Territorial Governor. It was 
in June, 1822, that the first meeting of the Legislative Council, con¬ 
sisting of thirteen men who assisted the Governor, was held at Pen¬ 
sacola. The following year in May the council met at St. Augus- 
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