this is a better map...I myself have been to that field dozens of times. I drove by there just last week. I also saw the handwritten map (a copy was available online at one time) and I can tell you, even knowing exactly where the field is located, I would never have found it had I been following that map!!!
the field party was held on whetstone drive, a little bit east of the place where county road 170 intersects whetstone. You may have to zoom in or out to see the details.
http://www.mapquest.com/maps/map.ad...&geodiff=1