Subject: Superintendent Stevenson standing next to a monument of bedrock mortars at the Riggs ranch in Sulphur Valley Springs.
Date: 1937
Collection: WACC: Chiricahua.
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Mortar Monument
Subject: Superintendent Stevenson standing next to a monument of bedrock mortars at the Riggs ranch in Sulphur Valley Springs.
Date: 1937
Collection: WACC: Chiricahua.