By the mid 17th century, shingle was again preventing the region from draining properly, until the new channel was reinstated around 1731.
Below is an instruction that describes a task, paired with an input that provides further context. Write a response that appropriately completes the request. ### Instruction: List the MITRE techniques contained in the text. ### Input: By the mid 17th century, shingle was again preventing the region from draining properly, until the new channel was reinstated around 1731. ### Response: .