LECL Lewis and Clark NHT Panoramic Mapping Segments

This dataset represents the areas of the Lewis and Clark National Historic Trail where high-resolution, 360-degree panoramic mapping fieldwork has been conducted. The Lewis and Clark National Historic Trail is approximately 4,900 miles long, extending from the Ohio River in Pittsburgh, Pennsylvania to the mouth of the Columbia River in Oregon, following both the outbound and inbound routes of the Lewis and Clark Expedition. The trail connects 16 states (Pennsylvania, West Virginia, Ohio, Indiana, Kentucky, Illinois, Missouri, Kansas, Nebraska, Iowa, South Dakota, North Dakota, Montana, Idaho, Washington, and Oregon) and was established by Congress in 1978 as part of the national trails system (NTS) as one of four original national historic trails. This trail commemorates the 1803-1806 expedition of Lewis and Clark and the Corps of Discovery, which explored the Louisiana Territory and beyond. This epic journey contributed to significant scientific knowledge and profound political, social, economic, cultural, and environmental changes to the lands and the peoples of the North American continent.本数据集涵盖刘易斯与克拉克国家历史步道（Lewis and Clark National Historic Trail）已开展高分辨率360度全景测绘外业工作的区域。该步道全长约4900英里，沿刘易斯与克拉克远征队的往返路线铺设，东起宾夕法尼亚州匹兹堡市的俄亥俄河畔，西至俄勒冈州哥伦比亚河河口。该步道串联起16个州，分别为宾夕法尼亚州、西弗吉尼亚州、俄亥俄州、印第安纳州、肯塔基州、伊利诺伊州、密苏里州、堪萨斯州、内布拉斯加州、艾奥瓦州、南达科他州、北达科他州、蒙大拿州、爱达荷州、华盛顿州以及俄勒冈州；1978年由美国国会设立，作为国家步道系统（National Trails System, NTS）的组成部分，亦是首批四条国家历史步道之一。该步道旨在纪念1803至1806年间刘易斯与克拉克率领的探索队（Corps of Discovery）远征路易斯安那领地及更广区域的历史壮举。这场史诗级远征为北美大陆的土地与民众带来了意义深远的科学认知，同时在政治、社会、经济、文化与环境领域引发了深刻变革。