(Bear) NW of Putnam, Senachwine Township, Putnam County, IL. IL29 N. 1.2 miles from jct with CR550N in Putnam, W. on CR665N 1.1 miles, continue W. on CR670N 0.4 miles, continue W. (curves N.) on Poplar Dr. 0.4 miles, W. on Lake Thunderbird Dr. 0.7 miles to the carving on the N. side of the road at 197 Lake Thunderbird Dr. (N41 12.205 W89 26.828) Photo 5-22-03.