Hill Sprint warm ups

What would be a suitable warm up for a hill sprint workout since the hill that i run on is at a different location from the Athletic Track i usually train at?

There is also a field adjacent to the Track that has a very slight incline for about 50m could i use that, or would the steeper hill i run on that is on a 20 degree plus gradient be better?

Sorry i posted this in the wrong section it is late here where i am lol. Does anyone know how i can move it to an appropriate sub forum?

I was thinking you must be pretty important for your hill sprint warm-ups to be in the news.