2013 Map of Seadrift NE

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Powderhorn Lake dominates the upper reaches of this coastal landscape, where the Powderhorn Lake Oil Field indicates the ongoing industrial importance of the Texas Gulf Coast. The transition from terrestrial drainage to maritime expanse is traced by Coloma Cr, which flows toward the inlet. Along the southern edge of the sheet, the barrier-island environment is clearly defined by Dewberry Island, separating the inner reaches of Shoalwater Bay from the open waters of Espiritu Santo Bay. The local road network, including family-named routes like Wittnebert Rd and Morales Rd Ureste Rd, provides a look at the rural property divisions and settlement patterns characteristic of Calhoun County in the early twenty-first century.