Hiked the green and red trails at Michael Huber Prairie Warbler Preserve
for a total of 9.5 miles. The kiosk had a supply of maps. It is the exact same map (even same size) as what is available online. Parking is probably along the road as there did not seem to be any space at the entrance but everything was snow covered, especially deep from plowing, so I parked across the street where there was some cleared space at the turnoff on to Johnson Place Road. The snow had been melting and refreezing at night so early on all I needed were Yaktrax and pretty much walked on top of frozen snow. In some places there was no snow at all, other places about 10 inches. Towards the end of the hike when it was warmer and the snow got softer it became more difficult to maneuver through it but all-in-all it wasn't bad. It was a gorgeous day and having green pine needles to look at instead of naked trees was nice for a change. It was quiet and peaceful and never ran into another person. In fact, the red trail which is the farthest out, was unbroken except for deer tracks so we were the first ones on it since the snow. A little bit of traffic noise on the part of the red trail closer to Route 70 but it doesn't last very long. For the most part, trails are very well marked. There are quite a few blowdowns from the snow storms.
At the top of where I have circled in pink on the map below (just to the lower left of where the yellow trail starts) there is a bridge that is extremely difficult to get on and off of. There are logs leading to and from the bridge that are slimy, slippery and unstable. The bridge itself is stable, just getting on and off is quite dangerous. My dog fell in when the logs collapsed and I had to hold her head up until I could pull her out, the water was that deep. It is also all swamp beyond the bridge, unmaintained and poorly marked trail. So best to avoid the whole section that I marked below in pink. I have notified the NJ Conservation Foundation about the bridge.