New Jersey. Department of Environmental Protection. Bureau of Geology and Topography. Atlas Sheet 25 (1974) New Jersey Geological Survey. Alternte title: [New Jersey.] Atlas sheet 25. Relief shown by 10 or 20 feet contour interval and spot heights. Title was not given. Region covered: Morris and Sommerset counties. Original survey, 1883-4. Principal features revised, 1917, 1930-39. Original survey under direction of C. C. Vermeule, Topographer in 1880-3. 1954 revision by R. G. Blanchard, Topographic Engineer. In lower margin: Sheet 25. Topographic series.