This is one of the few homes in Uptown Butte where building stone was used for the entire house and foundation. The rock type used is apilite - very light in color as it is mostly composed of quartz and feldspar minerals.

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The old YMCA on West Park Street and the apilite wall with capstones of granite.

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Main Hall's granite steps with dark (mafic) inclusions. This texture of dark blobs in granite is typical of many parts of the Boulder Batholith, including the Welch Quarry near Homestake Pass. Also pictured are examples from the Science & Engineering Building as well as the granite arch and rock wall at the corner of Park & Western Streets.

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This wall, and others in the neighborhood, contains large boulders of the oxidized ore vein rock, especially low in the wall. As the boulders were likely not transported far, these boulders were obtained locally during excavation of the bedrock in the area.

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