jumping-off place

[juhm-ping-awf, -of] /ˈdʒʌm pɪŋˈɔf, -ˈɒf/
noun
1.
a place for use as a starting point:
Paris was the jumping-off place for our tour of Europe.
2.
an out-of-the-way place; the farthest limit of anything settled or civilized.
Origin
1820-30, Americanism
British Dictionary definitions for jumping-off place

jumping-off place

noun
1.
a starting point, as in an enterprise
2.
a final or extreme condition
3.
(Canadian) a place where one leaves civilization to go into the wilderness
4.
(US) a very remote spot
Idioms and Phrases with jumping-off place

jumping-off place

.
A starting point for a journey or venture, as in This tiny village is the jumping-off place for our trek into the desert. This usage probably alludes to jumping into the water. [ Early 1800s ]
.
A very remote spot; also, the last place to be reached. For example, This was the jumping-off point for the first gold miners in Alaska. [ Early 1800s ]