Grasshopper Glacier, the largest is located about 19 km. north of Cook, Montana within Custer National Forest. The glacier on Iceberg Peak occupies a north facing cirque at nearly 3300 m. (11,000 ft.). In 1940, it was about 1.6 km. wide and on its northwest side terminated in a 15-m. cliff. In 1966, seen below, the glacier had an area of 0.42 square kilometers. The name of the glacier is derived from the myriads of grasshoppers that were embedded in the ice. These grasshoppers either were downed by sudden storms or were carried over the glacier by strong air currents, where the cold forced them onto the ice surface. The grasshoppers are an extinct type of Rocky Mountain grasshoppper Melanoplus spretus. They perished here, were buried by new snow and preserved. At the time the glacier ended in a small lake. Progressively the glacier has retreated. By 1966 it was 0.6 km long, in 1994, seen below, 0.36 km long and in 2006 0.27 km long.
In 2005 this glacier has ceased to exist as a glacier, there are a few remnant perennial snow and ice patches the largest with an area of 0.05 km2. In the majority of recent summers the glacier has lost all of its snowcover. Glacier survival is dependent on consistent accumulation retained on the glacier each summer, this glacier will not survive. The glacier has continued its rapid recession and the further segmentation into small disconnected segments, heralds the end of an active glacier. We do have a gorgeous new alpine lake in its place. Notice the basin is still largely devoid of plant life and the surface still has the color of newly exposed-deposited sediments.
In the USGS map for Mount Daniels-Mount Hinman in the North Cascades, Washington based on 1958 aerial photographs, overlain in Google Earth. Hinman Glacier is the largest glacier in the North Cascades south of Glacier Peak. Today it is nearly gone. Hinman Lake, unofficial name, has taken the place of the former glacier, which still has a couple of separated relict ice masses. From 1984-2007 all 47 glaciers observed by the North Cascade Glacier Climate Project receded. Hinman Glacier has had one of the more dramatic retreats. Immediately below is the 1965 Mount Daniels Quadrangle USGS map of the glacier. The glacier extends from the top of Mount Hinman at 7600 feet to the bottom of the valley at 5000 feet. The next image is of Hinman Glacier from the west in 1988,the Hinman Glacier is now a group of four separated ice masses, three are significant in size still. The third image in the sequence is the 1998 aerial image of the glacier a few areas of blue ice are seen, the glacier is 20% of its mapped size. There are still three sections of remanant blue glacier ice. The next picture in the chain is the glacier in 2006, from a Google Earth image,at this point the glacier is no longer detectable under the snowcover, note the map outline and the gorgeous new unnamed Lake Hinman. The new lake 0.6 miles (one kilometer long). Lastly is a 2009 view from the far end, north end of Lake Hinman up the valley and mountain side that was covered by the Hinman Glacier, now 90% gone. Each of the two larger ice masses from 1998 is now divided into at least two smaller portions. This is no longer a glacier and is just a few relict pieces of ice, the largest has an area of 0.05 square kilometers.