README FILE for files that accompany:

Oregon Department of Geology and Mineral Industries
Special Paper SP-37 -- Dynamic Revetments for Coastal Erosion Stabilization: A Feasibility Analysis for Application on the Oregon Coast

by Jonathan C. Allan, Ron Geitgey, and Roger Hart
Oregon Department of Geology and Mineral Industries, Coastal Field Office, 313 SW 2nd Street, Suite D, Newport, OR 97365


The following database files can be used in a geographical information system (GIS) such as ArcGIS or Map Info to display locations of quarries west of the Willamette Valley capable of producing gravels suitable for constructing a dynamic revetment. The data were compiled from the DOGAMI’s Mineral Land Regulation and Reclamation (MLRR) database, from the Mineral Information Layer for Oregon (MILO) database, and from site visits and personal and telephone conversations with members of the aggregate industry.

Quarry_Rock lists quarries meeting the following criteria:

 - Production of at least 50,000 tons of quarry rock over the last five years
 - Production of at least 20,000 tons in one year of the last five years
 - Location west of the approximate crest of the Coast Range

Round_Rock lists gravel pits from which naturally rounded, cobble-sized material can be produced. Round rock is not common in the coastal area, so sources east of the Coast Range and west of the Cascades were included. Some sites have direct loading to rail or barge, some could probably obtain intermittent rail access, and others would require truck haulage to a railhead or to the project itself.

These files have been plotted in the Oregon Lambert, 1997, feet projection system. The complete set of files includes:

Quarry_Rock	– Quarry rock database
Round_Rock	– Round rock database
STATE_OUTLINE	– Map outline of the state of Oregon
COUNTYA	        – Text file listing Oregon county names
COUNTYL	        – Oregon county polygons
STATE_PARKS	– Oregon state park locations
RIVERS	        – GIS database of Oregon rivers
RAILWAY2004	– Railway lines
HWYS_interst	– Oregon Interstate highways
HWYS_major	– Major Oregon highways
HWYS	        – Other Oregon highways
