Assertion: caldera's wall | /r/HasProperty | steep
Facets:
value: very
type: DEGREE
value: with loose gravel
type: OTHER
Source sentences:
text: The surrounding walls are steep and the interior mostly barren-looking with a scattering of volcanic cones.
text: It takes some doing getting down to the 22-26 degrees Celsius geothermal water of Hell as the walls of the crater are steep with loose gravel.
text: First, as my dad noted, the outer walls are very steep and rugged.
text: The reason active Hawaiian calderas have steep walls is that surface rocks are too brittle to sag very well, and they fracture .