Well Drilling Companies in Willis, TX

Willis lent its name to the Willis Formation, the Pleistocene-age clay, silt, sand, and siliceous gravel unit that the USGS's national geologic names database says was "named from town of Willis, 10 mi north of Conroe, Montgomery Co., southeastern TX, which is located on top of north end of a ridge held up by the formation." The formation is mapped across Grimes, Harris, Jasper, Montgomery, Newton, Polk, San Jacinto, Tyler, Walker, and Waller counties, and its sands are among the Gulf Coast formations found in nearby Liberty County's water-well records. (source)