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Rock art known as petroglyphs are widespread throughout the South Mountain area (pictured), leaving Bostwick little doubt that pre-historic Hohokam people settled in the area as early as 300 years before the birth of Christ. In 1973, crews building the Superstition Freeway (now U.S. 60) unearthed Hohokam pottery shards, remnants of an extensive irrigation system and other relics east of Rural Road along the highway's path. The discovery prompted the federal government to halt construction of a two-mile segment from Rural to Price Road to allow archeologists time to excavate and document the discovery. Ultimately, the federal government allowed the freeway to be built -- but at ground level along that portion rather than below, as originally planned. Freeway planners at the time argued it was better to pave over the Hohokam village rather than find a new alignment for the freeway or stop its construction. [Note: To read the full article, click here.]