
The international border between Canada and the United States defines the northern extent of this modern cartographic study in Whatcom County. Located in the far northwestern reaches of Washington, the landscape is defined by the survey lines of T41n R4e and T41n R5e, marking the transition between the agricultural and forested lands near the 49th parallel. The drainage patterns and watercourse networks depicted here provide an essential record of the contemporary hydrological state of this borderland region, reflecting the ongoing management and mapping efforts of the U.S. Geological Survey in the 21st century.
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This is the sole edition of this map. No revisions or reprints were ever made.
1906 · Sumas
USGS Topo · 1:62,500
1908 · Sumas
USGS Topo · 1:62,500
1919 · Van Zandt
USGS Topo · 1:62,500
1951 · Van Zandt
USGS Topo · 1:62,500
1952 · Sumas
USGS Topo · 1:24,000
1954 · Lynden
USGS Topo · 1:62,500
1957 · Victoria
USGS Topo · 1:250,000
1972 · Maple Falls
USGS Topo · 1:24,000
1972 · Kendall
USGS Topo · 1:24,000
1975 · Bellingham
USGS Topo · 1:100,000