verb + into VS noun+ into

1. I walked right into a mob of maybe 50 young white guys.

2. A short walk into a forest-like part of the farm leads to the base of a tree where Ms Chiliza’s remains were discovered.

I am familiar with the use of "into" with verbs like the example number 1. Some sort of motion is related here.

But what’s the meaning of "into" in the second example? Is it possible to say :

A short walk to a forest like part of the farm……..?

Another example I can give is : Australia has also been conducting a probe into the scandal.

Here is it possible to use "to" instead of "into" with prob?

Please explain where I can use "into" with a noun.