This shrew lives in moist forests and streamside areas of western Oregon. It eats insects and other small invertebrates.
It is a large shrew with pale reddish-brown fur and a long tail. The account notes that it is difficult to distinguish in the field from the fog shrew.
It is recorded in moist riparian forest where coarse woody debris occurs along streams. Its diet includes invertebrates, but the species page does not describe specific prey or hunting behavior.
An extinction-risk assessment has not been added yet.