and the Alps. The glacier has its origin in Brady Icefield and has a flow rate of per day. At the water edge, its width is , rises to a height of and stretches to a length of and flows into Bigourdan Fjord. In view of fast rate of retreat, this glacier has turned from tide water to terrestrial glacier, particularly on its eastern and western one third widths. Sediment deposits from the glacier have gradually filled the eastern and western margins at its inlet, as seen during low tides. The central one third of the glacier, however, touches water edge with a recorded depth of of water, during high tide. The walls of the fjord of the glacier, however, also show marks of lateral deposits of the glaciers right up to rock faces. Lamplugh Glacier The Lamplugh Glacier was named by Lawrence Martin of the U.S. Geological Survey (USGS) around 1912 for the English geologist George William Lamplugh (1859–1926), who visited the Glacier Bay in 1884. The Glacier originates in the Brady Icefield to the east of Fairweather Range. The glacier has a width of about at the water face. Its rises to height of with depth of at the waterline. It stretches to over . The ice flow rate from the glacier is estimated at per year and is noted to be receding in the central and eastern part of the ice face due to calving; the western part is, however, seen mostly grounded except during the high tide range. In the central part, a subglacial stream has developed which is seen to shift its position laterally. This phenomenon is attributed to the deposition of fluvial sediment in the embayment. It forms a delta, as observed during low tide. It also results in water turning from brown to tan milky. Johns Hopkins Inlet The Johns Hopkins Inlet is a stunning long fjord, which has several tide water glaciers. The Lamplugh Glacier is about away from the inlet and further inside is the Johns Hopkins Glacier, which is now the largest tidewater glacier in Glacier Bay and adjacent to it is the Gilman Glacier followed by the Hoonah Glacier further up. All these glaciers are tidewater glaciers. Ice blocks float in the inlet and it is quite hazardous for boating or kayaking; both activities have to be done with great caution. Johns Hopkins Inlet is closed to boats in