Fig. 10From: Land subsidence and aquifer compaction in Montgomery County, Texas, U.S.: 2000–2020a A sketch showing the depths of groundwater wells at the Lake Houston site; b a site photo showing extensometer, GPS, and groundwater wells at the Lake Houston site. The GPS antenna (TXCN) is mounted on the top of the inner pole of the extensometer, which is anchored at the top of the Burkeville confining unit, 591 m below the land surfaceBack to article page