Retrieve all files from Windows based folder structure with random folder depth-- VB.NET 2012

I need to retrieve files from a directory/folder structure that has files and folders at extreme ends of folder depth.  All folders will start with (as an example)...H:\Staging\Acquistion_Staging\.....Folder depth after this initial start are anywhere between 1 and 8 folder levels deep.  A mix of files and folders may be at the same folder level.  I can retrieve/process files when I know the folder depth and when files are at the same level as as the known folder level.  The situation I am in has over 7500 files in over 950 folders where the folder depth is inconsistent (ranging from 4 to 11 levels deep).  What I am trying to determine is how I can automatically retrieve a file when I do not have a known folder depth. Is there a way determine the depth of any given folder?  Any direction on this is appreciated.