Gulch vs Glen - What's the difference?

As a verb gulch

is (obsolete) to swallow greedily; to gulp down.

is a ravine-like or deep v-shaped valley, often eroded by flash floods; it is shallower than a canyon and deeper than a gully.

for someone who lives in a valley.

(es)

(obsolete) To swallow greedily; to gulp down.

(es)

A ravine-like or deep V-shaped valley, often eroded by flash floods; it is shallower than a canyon and deeper than a gully.

(obsolete) An act of gulching or gulping.

(obsolete) A glutton.

(Ben Jonson)

(en noun)

A secluded and narrow valley; a dale; a depression between hills.