County Road 100 ends at the intersection of County Road 100j. The section North of 100j is a private driveway.

The line marked "Rock Lake Road (FS227.1)" to the southwest of this marker is private, locked and gated driveway. It ends at the location of the marker. Please remove this from the map. My wife's family owns this property and they have had numerous problems with people thinking this is a public road and cutting fences etc. when the find they cannot get through the gates.

Also, that part of the road running northeast from this marker for approximately 100 yards (to the forest service boundary) is no longer a road; it was officially abandoned by Boulder County in approximately 1909, and is now overgrown with mature trees. Please remove it; its presence on the map encourages trespassers and fence-cutting, and is a safety hazard as some local residents have mentioned it as a potential fire escape route, not knowing that it is impassible.