OK I'm dredging up this old thread so as to not make a new one. I am probably going to do the Feb. 3, 2013, ranger-led hike to see some petroglyphs. I called the park, and was told we will also see some paleontology sites. (Word is out that a certain paleontologist member of HAZ was at the park within the past week. That Page CG guy, you know the one I'm talking about? ;) )
Here's the info for Feb. Sunday hikes at the park:
February 3, 2013 at noon Lacey Point Petroglyphs Meet at Painted Desert Visitor Center
February 10, 2013 at noon Onyx Bridge Meet at Painted Desert Visitor Center
February 17, 2013 at noon Jasper Forest Meet at Rainbow Forest Museum
February 24, 2013 at noon The Dying Grounds Meet at Painted Desert Visitor Center
Each hike will last about three hours and is about 3 mi (4.8 km) round trip. Each hike showcases impressive petroglyphs and colorful petrified wood rarely seen by the public. Be ready to learn in the great outdoor classroom of Petrified Forest! These hikes are not accessible and are over uneven terrain. Exposure to elements may include mud, ice, and cold weather. As such, wear appropriate layered clothing and footwear. Bring food and water. The hike is free, with no prior signup required. The normal entry fee into the park applies. Hike locations are subject to change based on conditions and weather.
Here's the link to the page: