(IL-78-02) 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, sharp right (E. – curves left all the way around the lake) on Lake Thunderbird Dr. 0.8 miles to the house on the S. (left) side of the road at 40. House can be seen better from the dirt road to dam & picnic area on the W. side of the house. (N41 12.481 W89 26.209) Photo 5-22-03.