SOIL SURVEY OF PINELLAS COUNTY, FLORIDA. 33 1 
inches; the mean annual temperature about jo° F. The winter 
mean is approximately 6o° F., and the summer mean close to 8o° 
F. The climate is one of relatively stable temperature. On account 
of the pleasant winter weather, thousands of tourists flock to the 
resorts along the coast. 
Transportation facilities are good over a large part of the county. 
Much shipping is done by water. 
Clearwater, the county seat, has a population of about 1,171. 
St. Petersburg, with a population of 4,127, is in the southern part 
of the county. Tarpon Springs, in the northern part, with a 
population of 2,212, is one of the greatest sponge markets in the 
world. Sutherland, Ozona, and Dunedin are smaller towns in the 
western part of the county. These are shipping points for citrus 
fruits grown in their respective communities. Green Springs, the 
site of Espiritu Santo Springs, is a noted health resort. It is 
also an important shipping point for the east coast. Largo is one 
of the chief shipping points for citrus fruits. 
Citrus fruits constitute the money crop of the county. Trucking 
is carried on to a limited extent. No general farming is practiced 
and practically all grain and hay are imported. 
Land values have advanced considerably during the last five 
years. Unimproved land can be bought for $10 to' $75 an acre, and 
well-established citrus groves for $300 to $1,000 or more an acre. 
Eleven types of soils are mapped in the county. These are 
grouped in six series, with miscellaneous types, as follows: Swamp', 
Muck, Tidal marsh, and Coastal beach. Types of the fine sand class 
predominate, there being but two fine sandy loams and one silty 
clay loam. 
The Norfolk fine sand is the most important and valuable soil. 
It is practically the only type used for citrus orchards and commands 
the highest price. The hilly phase is a loose, droughty soil. The 
flat phase contains a high percentage of organic matter and is a 
strong, productive soil for truck and citrus fruits. 
The Portsmouth fine sand is a poorly drained soil, usually under¬ 
lain by hardpan. When artificially drained it is best adapted to 
trucking. It is not at all suited to citrus fruit production. The 
swamp phase supports a heavy and valuable growth of cypress. 
No attempts have been made to clear and drain these wet areas. 
The Leon fine sand occurs typically and in a rolling phase. 
The typical soil closely resembles the Portsmouth fine sand in 
