Definitions for "Transboundary"
Reach of the Columbia River extending from Grand Coulee Dam in the U.S. to H.L. Keenleyside Dam in Canada that includes the most significant remaining white sturgeon population in the upper Columbia River basin.
Keywords:  yukon, border, alaska, across, canadian
across a boundary (e.g. concerning the Yukon and Alaska).
Refers to U.S. and Canadian border..
Across borders.