MACON, Ga. — When you were in school, you may have learned about topography and then quickly forgot it. Topography is the study of land features, like mountains, creeks, and hills. It plays a big role ...

Cold, steep, high-elevation slopes with less vegetation produce coarser and larger sediment than low-elevation, gentle slopes. This finding quantifies how sediment production varies with topography ...

PORTLAND, Ore. — When snow is expected to fall in the Portland metro area, the Oregon coast range and the Cascade Mountains, not everyone may see sticking snow. Whether or not it covers the ground and ...