The final, small boardwalk along the relocated Graveyard Fields trail. Just before you reach this (and this is looking back toward the beginning of the loop), the loop trail leads left and crosses (or will cross) a new bridge over the Yellowstone Prong creek, and heads back to the parking lot. So this structure is on the extension trail to Upper Falls. Just beyond this point, the relocation ends and merges back with the old trail where it heads away from the Yellowstone Prong.
