GEOGRAPHIC SETTING: Olympic soils are on stable summits of foothills and mountains at elevations of 200 to 2,000 feet. Seaquest soils have an ochric epipedon. Plants growing in silty loam need more water than those in clay soil, but much less than those in a sandy soil. GEOGRAPHICALLY ASSOCIATED SOILS: These are the Rock fragments range from 5 to 30 percent in the solum above the Btx, from 10 to 50 percent in the Btx, and from 25 to 75 percent in the C horizon. Reaction, where unlimed, ranges from extremely acid to moderately acid in the upper part of the solum, and from strongly acid to slightly acid in the lower part and C horizon. REMARKS: Diagnostic Horizons and Features of this soils: Ochric Epipedon- the horizon from 0 to 3 inches (0 to 2 inches thick), A--0.5 to 3 inches; brown (7.5YR 5/2) silt loam; weak fine granular structure; very friable, nonsticky and nonplastic; many roots; 10 percent rock fragments; very strongly acid; abrupt smooth boundary. Consistence is friable or firm. Wooded areas are mixed hardwoods, dominantly oaks. GEOGRAPHICALLY ASSOCIATED SOILS: Texture--silt loam or silt Clay content--10 to 22 percent Reaction--moderately acid to neutral. This soil was previously classified as clayey, mixed, mesic Xeric Haplohumults. An E horizon, where present, has hue of 7.5YR to 2.5YR, value of 4 to 6 and chroma of 2 to 4. The Bx has hue of 10YR to 5YR, value of 4 or 5, and chroma of 2 to 6. Reaction is moderately acid to very strongly acid. The organic matter content of soil tends to be highest in soils with a high silt concentration. (1 to 6 inches thick), E--3 to 5 inches; reddish gray (5YR 5/2) silt loam; weak fine granular structure; very friable, nonsticky and nonplastic; many roots; 10 percent rock fragments; very strongly acid; clear wavy boundary. Learn more. 77 degrees 7 minutes 20 seconds W. RANGE IN CHARACTERISTICS: Solum thickness ranges from 40 to 65 inches or more. Cinebar, Silt is most prominent in valley floors, where erosion has deposited large quantities of loose, fertile soil. Wilkeson soils. 17, T. 13 N., R. 3 W. RANGE IN CHARACTERISTICS: Average annual soil temperature at a depth of 20 inches ranges from 47 to 54 degrees F. Olympic soils are usually moist but are dry in all parts between depths of 4 and 12 inches for 45 to 60 consecutive days within the 3 months following the summer solstice. It is clay loam, silty clay loam, silty clay or clay. The A horizon has hue of 5YR or 7.5YR, values of 2 to 5, and chroma of 2 to 4. Reaction ranges from slightly acid to very strongly acid. A. Argillic Horizon - the Bt1, Bt2, Btx1 and Btx2 horizons from 5 to 45 inches.

The term "mottles" as used in the soil survey description was changed to redoximorphic features. Texture ranges from silt loam to clay loam. Redoximorphic features can have a variety of colors. Hue is 7.5 YR or 5YR throughout the solum. Below the particle-size control section rock fragments range from none to about 75 percent and clay ranges from 35 to 60 percent. Urbana series may become competitors as their classification is updated to the eighth edition of soil taxonomy.. Amwell soils formed in colluvium or glacial material from igneous rocks and contain fragments of basalt. There's a simple test to determine if you have silty loam soil. PEDON S62-PA-29-12(1-6).

The climate is temperate and humid, with mean annual precipitation of 36 to 46 inches; average annual temperature is 48 degrees to 55 degrees F., and the frost free growing season is 140 to 220 days. Place a handful of soil in a clear, quart-size jar, fill it two-thirds with water and shake vigorously for about 30 seconds.