Day One of Our timber and Rail trip

Today, July 15, we left Huntington WV.  We traveled via I 79 to Bridgeport WV where we had lunch then traveled on to our first stop, Cathedral State Park.  This 132 acre state park contains virgin hemlock forest.  Since the state's forest were practically clear cut in a 30 year span at the turn of the 20th century, this little slice of forest which has never been cut has been designiated "an area that posesses exceptional value in illustrating the natural history of the United States."by the National Registry for Natural History Landmarks.  The high canopy of this forest makes the floor of the forest relatively clean.  It is also very dark and cool under the forest canopy.
The Park is located in the Northern part of the state in Preston Countty on route 50 near the Maryland border.  The elevation of the park ranges from 2,460 ft. to 2620 ft.   http://www.cathedralstatepark.com/.   
The GPS location of the park is 39.32697 deg. lat.  and  -79.53658 deg. long.

Hemlocks

With our labquest we anaylized the soil of the forest.  Our samples ranged from 4.00 to 4.53  Ph. What does this mean about the soil?

We also measured the board feet of lumber in one of these giant trees.  What would the value of this one tree be if it was timbered and processed today?