Creating output file that is 308P x 375L.
Processing /geodata/prism/ppt/.vrt [1/1] : 0Using internal nodata values (e.g. -9999) for image /geodata/prism/ppt/.vrt.
Copying nodata values from source /geodata/prism/ppt/.vrt to destination ut4051911005120120627/ut4051911005120120627_20120709_nbr6.usgs_lcc.tif_reveg/prism_monthlies_ppt.tif.
...10...20...30...40...50...60...70...80...90...100 - done.