# Channels

There are a number of SWAT+ files that control the simulation of channel processes. The file  [**channel-lte.cha**](/io-docs/~/changes/GiVD5ID0WVyRIAumaMy2/introduction/channels/channel-lte.cha.md) summarizes the main channel information and references several other files that specify the details:

* [**initial.cha**](/io-docs/~/changes/GiVD5ID0WVyRIAumaMy2/introduction/channels/initial.cha.md) references several files, which specify the initial contents of nutrients and constituents in the water,
* [**hyd-sed-lte.cha**](/io-docs/~/changes/GiVD5ID0WVyRIAumaMy2/introduction/channels/hyd-sed-lte.cha.md) controls the channel hydrology and sediment properties, and
* [**nutrients.cha**](/io-docs/~/changes/GiVD5ID0WVyRIAumaMy2/introduction/channels/nutrients.cha.md) controls the channel nutrient properties. 


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