Although no historic eruptions have been reported from Mount Griggs, vigorously active fumaroles persist in a summit crater and along the upper southwest flank.

The town is placed on the distal gently sloping southwest flanks of Mount Shasta, with the chief surficial soils being Quaternary alluvium.

The prominent La Olleta pyroclastic cone is on the volcano's southwest flank and may also have been active in historical times.

Part of the volcano's southwest flank built out onto thick glacial ice filling the Squamish River valley.

If this is an outpost of tyranny, it was not immediately obvious in this one-road backwater buried in Zimbabwe's hilly southwest flank.

On the volcano's southwest flank is the pyroclastic cone La Olleta, which is not currently active, but may have erupted in historical times.

Washes converge off the southwest flank; they flow southwest, then converge in a shallow valley, with three washes flowing northwest to the GSLD saltflat.

He was reported missing on Saturday after he fell down a slope and became separated from a group he was leading in the Paradise area, a popular high-elevation destination on the mountain's southwest flank, about a 100-mile drive south from Seattle.

While the principal faults in the region are of the strike-slip type, a significant thrust fault (with no surface trace) is found on the mountain's southwest flank.

Volcanic activity has been observed in this area since the mid-1980s, with fresh lava flows on the southwest flanks of Heard Island.