ADVANCING GEOSCIENCE THROUGH MULTI-PROJECT MAPPING: APPLIED GEOLOGICAL INVESTIGATIONS IN CATAWISSA, PENNSYLVANIA

The Pennsylvania Geological Survey's investigations in the Catawissa quadrangle, Columbia County, Pennsylvania, exemplify the integration of applied geoscience methods to address geological hazards, resource management, and environmental challenges. Initially conceived as a bedrock mapping project, this effort evolved into a multi-disciplinary initiative incorporating surficial geologic mapping, automated hydrography classification, top-of-bedrock elevation modeling, and landslide susceptibility analysis. These efforts have yielded multiple maps and datasets, with additional outputs forthcoming, to support resource management, hazard mitigation, and land-use planning.

This initiative employed a feedback approach, in which hydrography data informed bedrock mapping and field validation improved hydrographic and surficial models. Key technologies included lidar for geomorphological analysis and GIS platforms such as ArcGIS Field Maps and Survey123 for real-time data collection, validation, and collaboration. These workflows enhanced map accuracy and data integration while fostering intradepartmental collaboration among experts in stratigraphy, GIS, and environmental geology.

The iterative synergy of these workflows advanced not only the understanding of surficial and bedrock geology but also enabled the development of practical tools for future applications, including refined top-of-bedrock models and landslide susceptibility assessments. This multi-project, multi-lead approach underscores the importance of integrating diverse expertise and technologies in state-led geoscience investigations.

By highlighting how applied geological investigations can address regional challenges and provide actionable insights, this project serves as a model for leveraging the varied expertise within the Survey to benefit communities in Pennsylvania.