Tools of the Trade: Historical Topographic Maps
Why historical topo maps? The U.S. Geological Survey started their topographic map program in 1879 with the first maps produced in 1884. Over the years, the USGS has produced topographic…
Why historical topo maps? The U.S. Geological Survey started their topographic map program in 1879 with the first maps produced in 1884. Over the years, the USGS has produced topographic…
Although agricultural wells are often constructed in similar ways to municipal wells, their operational pattern is likely to be seasonal, which can result in maintenance issues caused by plugging, especially…