If you're in Oz then something to consider if you're forced into the unfortunate situation of an engine failure below LSALT/MSA for an aerodrome are any DME Arrival steps & the relevant sector. It at least will give some indication of where there be dragons vs distance & arc.
Lacking that, I also consider the MDA per category for an aerodrome's circling approach. At least I can get some idea of terrain separation by staying within the circling area.
As Oz says: Always have a look at a topo chart...