"Luminescence Data from Trench Exposures across the Dead Coyote fault scarp in Kittitas Valley, Washington and the Walllula fault at Finely Quarry, Washington"

This data release presents optically stimulated luminescence (OSL) and infrared stimulated luminescence (IRSL) measurements from sediment samples collected at Quaternary fault exposures in central and southeastern Washington. The primary focus of the dataset is luminescence data from three paleoseismic trenches excavated across the Dead Coyote fault scarp in the Kittitas Valley, central Washington. These include samples BB22-OSL1 and BB22-OSL2 from the Bitter Brush trench; RC22-OSL1, RC22-OSL2, RC22-OSL3, and RC22-OSL4 from the Reecer Creek trench; and TL-01, TL-02, and TL-03 from the Dead Coyote trench. These samples support a forthcoming USGS Special Investigations Map publication titled Field and Laboratory Data from Trench Exposures across the Dead Coyote fault scarp in Kittitas Valley, Washington. In addition, this release includes luminescence data for samples 13BS016, 13BS017, and 13BS018 collected from an exposure of the Wallula fault at Finley Quarry in southeastern Washington. These samples were previously used to constrain the timing of faulting and deformation described in Sherrod et al. (2013). Together, the datasets provide luminescence-based age constraints relevant to Quaternary deformation along the Dead Coyote and Wallula faults and support ongoing and prior investigations of earthquake history and fault activity in central and southeastern Washington.