Canada marks the southern edge of this high-latitude survey, where the international border meets the northern boundary of the Mount Baker National Forest. This remote alpine landscape is defined by its complex hydrographic network, showing a series of unnamed streams and high-elevation drainage systems that feed into larger regional basins. The absence of human-made infrastructure, such as roads, mines, or buildings, underscores the wilderness character of this international border zone during the early twenty-first century. Researchers of ecological history or regional border management will find a clear record of the watershed patterns and natural terrain as it existed before contemporary environmental shifts or land-use changes.
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This is the sole edition of this map. No revisions or reprints were ever made.
1920 · Slate Pass
USGS Topo · 1:125,000
1955 · Concrete
USGS Topo · 1:250,000
1958 · Concrete
USGS Topo · 1:250,000
1962 · Concrete
USGS Topo · 1:250,000
1969 · Frosty Creek
USGS Topo · 1:24,000
1969 · Tatoosh Buttes
USGS Topo · 1:24,000
2002 · Tatoosh Buttes
USGS Topo · 1:24,000
2002 · Frosty Creek
USGS Topo · 1:24,000
2002 · Castle Peak
USGS Topo · 1:24,000
2011 · Tatoosh Buttes
USGS Topo · 1:24,000