Overlay of the previous image from 1880 onto my image from October 25, 2009.   Today's lane is a little wider.   The fence on each side has been moved further out.  A split rail fence rather than vertical fence with horizontal rails was added on the right (monument was added too) but the most important change is that there was a building located on the north side of the curve where the Lane inclines on the west end.  This structure is known as the Ward House. It was purchased and removed by the National Park Service many years ago.   Going back to the previous image for better detail...... notice that this building looks like it was a two story structure that had to have a foundation.  In other words, when it was built and then removed  there had to be some significant ground landscaping movement of earth.