You searched for City|State: dayville, or
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historicalmarkerproject/markers/HM25IS_an-oregon-fossil-rush_Dayville-OR.html
"What is it that urges a man to risk his life in these precipitous fossil beds? I can answer only for myself, but with me there were two motives, the desire to add to human knowledge, which has been a great motive all my life, and the hunti…
historicalmarkerproject/markers/HM21YW_mascall-overlook_Dayville-OR.html
Marker 1 Shows an overview map of the National Monument with other points of interest.
Marker 2 Like Icing on a Cake. "Between 16.6 million and 15 million years ago, eastern Oregon sat above the nascent Yellowstone hot spot's rising jet of basalt…
historicalmarkerproject/markers/HM1CUE_picture-gorge-basalts_Dayville-OR.html
The dark layers of Picture Gorge were formed from seventeen distinct floods of lava flowing from nearby cracks in the earth. These basalt flows joined with others covering much of eastern Washington and Oregon, and northern Idaho, beginning about …