Photos from the joint PASSCAL and Flexible Array deployment across the High Lava Plains. We will install a dense array of broadband seismometers across two transects of the High Lava Plains. One extends from the Cascade front over 400 km southeast to the Proterozoic crust of southern Idaho. The other reaches from nonextended crust composed of accreted terranes north of the High Lava Plains 350 km southward to northern Nevada near the first exposures of pre-Cenozoic basement. Embedded within this passive seismometer deployment will be two seismic refraction lines and accompanying gravity measurements to provide high resolution images of crustal structure across these widely varied terranes. See <a href="http://www.dtm.ciw.edu/research/HLP/">HLP Homepage</a>