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Agency

Texas Historical Commission

Abstract

Coastal Environments Inc. (CEI) conducted a cultural resources remote-sensing survey of two areas adjacent to Shamrock Island, Nueces County, Texas. The northern-most of these covers 56.38 hectares (139.31 acres), while the southern-most survey area encompasses 44.8 hectares (110.69 acres). These are proposed locations of sand borrow areas to be used by the Nature Conservancy, Texas Coast Office for the Shamrock Island Restoration Project. Data were collected by Naismith Marine of Houston, Texas on December 15th and 17th, 2014 and supervised by the principal investigator and the remotesensing specialist from CEI. Remote-sensing equipment used in the project include a Geometrics 882 cesium magnetometer, an Edgetech 4125 dual frequency side-scan sonar system, and a digital recording fathometer. Positioning was performed with a differential global positioning system (DGPS) with corrections provided by a Virtual Reference Station (VRS). Upon delivery to CEI, additional processing and analysis was performed on the data and relevant archival work performed in order to determine the cultural significance of remote-sensing anomalies. While the remote-sensing data delineate an array of modern oil targets, two targets of possible cultural significance (designated anomalies M11 and M16) were identified. It is recommended that these targets either be avoided or that further investigations are carried out to determine their cultural significance.

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Creative Commons Attribution 4.0 International License
This work is licensed under a Creative Commons Attribution 4.0 International License.

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