Silt In the Unified Soil Classification System (USCS) and the AASHTO Soil Classification system, the sand–silt distinction is made at the 0.075 mm particle size (i.e., material passing the #200 sieve). Silts and clays are distinguished mechanically by their plasticity. Silt is easily transported in water or other liquid and is fine enough to be carried long distances by air in the form of dust. Thick deposits of silty material resulting from deposition by aeolian processes are often called loess. Silt and clay contribute to turbidity in water. Silt is transported by streams or by water currents in the ocean. When
Silt, Colorado Silt, Colorado Silt is a Statutory Town in Garfield County, Colorado, United States. The population was 2,930 at the 2010 census, up from 1,740 at the 2000 census. A post office called "Silt" has been in operation since 1898. The community was named for the silt deposits at the original town site. Silt is located at (39.546316, -107.652072), on the north side of the Colorado River about west of Denver. Interstate 70 passes through the town as it follows the river, with access from Exit 97. Glenwood Springs, the county seat, is to the east, and Rifle is to the