After we crossed the Columbia River, we spied "Scenic View Ahead" sign, and a marker pointing to Wild Horse Monument, situated on top of a hill overlooking the Columbia River.. " A 'Work in Progress' the Wild Horse Monument on the east side of I-90 at Vantage, WA. Many a driver has been surprised by the herd of wild horses cavorting on the ridge above the highway. Certainly worth a brief stop and climb (with proper shoes as the trail can be treacherous). When completed a large basket will appear behind the last horse. The monument depicts the legend of 'Grandfather Cut Loose the Ponies'." Surprisingly, the horses are flat, not three-dimensional.