Yeah, well the Moneyhole map is across the river in Fahnestock State Park, on the east side of the Hudson. And quite a bit north of Harriman. It was made specifically for the World Cup, so is very accurate and extremely detailed. Most orienteers who navigate easily at Harriman, find Moneyhole to be much more challenging.
The nice thing about Moneyhole is that (1) there is a permanent course there, so you can verify that you've found the correct feature, (2) the map is for sale by HVO
in the mail, and (3) a second map can be purchased showing the actual routes of the top 3 runners.
And we're both wrong; it was used for the 1986 World Cup races.