Walla Walla, Washington (Oregon) NL 11-4 Revised 1981 — Contour Map — Plastic — Large Size

21″ x 28.5″ — Large Size Plastic Map with raised features.

Very good condition, as pictured.

Stock No. V502PNL114 – NL 11-4 Revised 1981.

“Contour Interval 200 Feet with Supplementary Contours at 100 Foot Intervals.”

Produced by Hubbard Scientific Inc., Chippewa Falls, WI 54729

Base map prepared by Defense Mining Agency by photogrammetric methods and from …. Survey from aerial photographs take 1980 and other source data.