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Photograph taken in the Ayres Natural Bridge park in Converse County, Wyoming. This county park features an arching rock formation over LePrele Creek. The Mary E. Hein Wyoming Photograph Collection contains 289 color photographs of various areas and…

Photograph taken in the Ayres Natural Bridge park in Converse County, Wyoming. This county park features an arching rock formation over LePrele Creek. The Mary E. Hein Wyoming Photograph Collection contains 289 color photographs of various areas and…

Photograph taken in the Ayres Natural Bridge park in Converse County, Wyoming. This county park features an arching rock formation over LePrele Creek. The Mary E. Hein Wyoming Photograph Collection contains 289 color photographs of various areas and…

Photograph taken in the Ayres Natural Bridge park in Converse County, Wyoming. This county park features an arching rock formation over LePrele Creek. The Mary E. Hein Wyoming Photograph Collection contains 289 color photographs of various areas and…

GMC truck with solid tires carrying a tractor with treads. Unknown processing units in the background.

Laboratory man pouring liquid
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