plains have variable drainage, lack stones and are mostly highly permeable. 

 Very poorly drained organic soils occur in scattered depressions throughout 

 the uplands, terraces and alluvial plains. Tidal marshes consist of wet 

 organic soils common along the coastline, in estuaries and in tidal embayments. 



Subregions 4 and 5 . These subregions include northwestern New 

 Haven County and southern Fairfield County. They are mostly in the Seaboard 

 Lowland physiographic province, however, the northern portions are in the New 

 England Upland province. The major drainageways of the area, emptying into 

 the Sound, are the Housatonic and Norwalk Rivers. 



The subregions consist of soils on glaciated uplands, outwash 

 terraces, alluvial plains, inland organic deposits and small areas of tidal 

 marsh deposits. The mineral soils have developed mostly in materials derived 

 from granite, gneiss and schist rocks. The organic soils have developed in 

 materials derived from various herbaceous and woody plants. 



Soil patterns in these two subregions are complex with regard to 

 slope, texture and stoniness, permeability, wetness and depth to bedrock. 

 The soils commonly exhibit highly contrasting features within short distances. 

 The deep upland soils are naturally stony; however, surface stones have been 

 removed in many areas. These soils are friable throughout or they may contain 

 a compact fragipan that is slowly permeable. They range from well drained 

 to very poorly drained. Bedrock outcrops are common in areas of shallow 

 upland soils. Soils of the terraces and alluvial plains have variable 

 drainage, lack stones and are mostly highly permeable. Very poorly drained 

 organic soils occur in scattered depressions throughout the uplands, terraces 

 and alluvial plains. Tidal marshes consist of wet organic soils along the 

 coastline, in estuaries and in tidal embayments. 



Sub region 6 . This subregion includes eastern Westchester County, 

 northern Nassau County and minor portions of Bronx and Queens. The area of 

 Westchester County is primarily in the Seaboard Lowland physiographic 

 province. Nassau County is in the Coastal Plain. 



The subregion consists of soils on glaciated uplands, outwash 

 terraces, alluvial plains, inland organic deposits and tidal marsh deposits. 

 The mineral soils of Westchester County have developed mostly in materials 

 from acid crystalline schist rocks. The soils of Nassau County are 

 formed mostly in materials derived from granite, quartz and gneiss rocks 

 brought in by the glacier from the north. Organic soils of the area have 

 developed in materials derived from various herbaceous and woody plants. 



Soil patterns in subregion 6 are complex with regard to slope, 

 texture and stoniness, permeability, wetness and depth to bedrock. The soils 

 commonly exhibit highly contrasting features within short distances. They 

 range from excessively drained to very poorly drained. In Westchester County 

 the soils are naturally stony and bedrock outcrops are common in areas of 

 shallow upland soils. The deep soils of subregion 6 are friable to loose or 



