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. 2020 May 4;28(5):1871–1890. doi: 10.1007/s10040-020-02153-7

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© The Author(s) 2020

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Fig. 3 — Map showing the locations of geophysical lines and other sensors. Note that ERT lines are labeled “EX”, SRT lines labeled “SX”, and GPR lines labeled “RX”, with “X” being the line number. Line S1 has two segments: S1W at the west and S1E to the east. Air photos from Alberta Environment and Park (2013)