McCroskey State Park Professional Review and Guide
"The second-oldest state park, this is one of Idaho’s most unusual camping areas. Virgil McCroskey owned land along the Washington–Idaho border and in the late 1940s offered to donate it to both states. Washington quickly accepted, but McCroskey had to convince the Idaho legislature over a period of years to accept his donation on the Idaho side. When it finally did agree, it did so only on condition that McCroskey pay $500 a year for park upkeep (for fifteen years) and personally work on upkeep. McCroskey, remarkably, accepted the conditions and remained faithful to them until his death in 1970, at age ninety- three. That determination becomes more understandable when you see the area, which is filled with forests, mountain peaks, and an unusual presence that McCroskey himself described as ghostly. Today, it remains Idaho’s least developed park.
Skyline Drive is a little challenging and not recommended for larger RVs, and the three campground areas scattered along Skyline are decidedly primitive; vault toilets are just about the only nicety provided. If you’re interested in roughing it and getting away from the crowd, though, McCroskey provides one of Idaho’s finer remote experiences, while not far from a major highway."