Help me, I'm confused. The The AT Data Book lists the mileage from Dennis Cove Road to Pond Flats Campsite as 4.8 miles. The Companion shows Dennis Cove Road as 412.6 and Pond Flats Campsite as 418.3, when the math is applied that equals 5.7 miles. Which is it 4.8 miles or 5.7 miles? That's 0.9 miles difference. Cabin Fever or TV can you help?