Bald Eagle Related Links Endangered and Threatened SpeciesWhy Do Animals Become EndangeredNumber of Species of AnimalsExternal Resources U.S. Fish and Wildlife ServiceU.S. Department of the? Conservation efforts help population of bald eagle increase from 400 to 10,000 over 40 years by Beth Rowen Bald Eagle Related Links Endangered and Threatened SpeciesJefferson MemorialFounding? (Encyclopedia) White Bear Lake, city (1990 pop. 24,704), Ramsey and Washington counties, SE Minn., on White Bear Lake; inc. 1922. It is a residential and resort suburb of Minneapolis?St. Paul.? (Encyclopedia) Lock Haven, industrial city (1990 pop. 9,230), seat of Clinton co., N central Pa., on the West Branch of the Susquehanna River at the junction of Bald Eagle Creek, in an agricultural? (Encyclopedia) eagle, common name for large predatory birds of the family Accipitridae (hawk family), found in all parts of the world. Eagles are similar to the buteos, or buzzard hawks, but are? (Encyclopedia) Katahdin Woods and Waters National Monumentk?td?n, 87,500 acres (35,400 hectares), N central Maine, est. 2016. Located E of Baxter State Park (the site of Mt. Katahdin) along the? (Encyclopedia) Berryessa Snow Mountain National Monument, 330,780 acres (133,860 hectares), N Calif., est. 2015. Jointly managed by Forest Service and Bureau of Land Management, the monument extends? (Encyclopedia) DDT or 2,2-bis(p-chlorophenyl)-1,1,1,-trichloroethane, chlorinated hydrocarbon compound used as an insecticide. First introduced during the 1940s, it killed insects that spread disease? (Encyclopedia) Jackson Hole, fertile Rocky Mt. valley, c.50 mi (80 km) long and 6 to 8 mi (9.6?12.8 km) wide, NW Wyo., partly in Grand Teton National Park. Jackson Lake, 39 sq mi (101 sq km), a? (Encyclopedia) Valles Caldera National Preserve vy?s, 89,766 acres (36,343 hectares), N N.Mex.; est. 2000 by Valles Caldera Trust, transferred to National Park Service 2015. Formerly part of the?