More than 925 historic maps with links to high-resolution MrSID files [...] Early Washington Maps: A Digital Collection, a collaboration between Manuscripts, Archives, and Special Collections and the University of Washington Libraries, contains the vision which numerous such authors held for the Pacific Northwest. Spanning three hundred years, Early Washington Maps: A Digital Collection includes maps of both sea and land faring explorers—from David Thompson, the successful navigator of the Columbia River, to the exploits of William Clark and Merriwether Lewis. It documents the struggle between Britain and America for the ownership of the region, and the further development of one of the last frontiers on the continent. Some of the digital collection's maps delineate the boundaries under dispute within the years 1818 and 1846, culminating in a peaceful compromise and the decision of the 49th parallel as the northern border of the United States. The digital collection also shows the efforts of the U.S. government to survey the land, for both federal and private use, under the watchful, trained eye of the General Land Office and the Corps of Topographical Engineers. [self-description]