Back Mountain Trail Cleanup. Volunteers are needed to clear storm drains and remove litter on the trail. Bring rakes and wear gloves. Meet at the Knight of Columbus parking lot, Parry Street, Luzerne near the trailhead. Saturday at 9 a.m. 696-5082. Future cleanups are scheduled for Nov. 12 and 20.
Susquehanna Trailers Hike, nine difficult miles at Sunfish Pond near Delaware Water Gap. Bring lunch and water. Sunday. Meet 8:45 a.m. at the Park and Ride, Route 315, Dupont. 688-0909.
Covey Beaver Dam Hike to the top of the Moosic Mountain Ridge with views of an active beaver lodge and dam. Meet at the Greater Scranton YMCA, 706 N. Blakely St., Dunmore. 9:15 a.m. Sunday. 343-5144.
Birding at Frances Slocum State Park. Join Bruce Troy of Wild Birds Unlimited to seek out songbirds. Meet in the parking lot of the Environmental Education Center, 565 Mount Olivet Road, Kingston Township. 8:30 a.m. Nov. 12. Free. 675-9900.
Mocanaqua Cliffs Hike, six steep miles along the ridge for views of Susquehanna River and old coal-mining foundations. Meet at Greater Scranton YMCA, 706 N. Blakely St., Dunmore. 9:15 a.m. Nov. 13. $8. 343-5144.
Susquehanna Trailers Hike, seven difficult miles at Hawk Mountain in Kempton. Bring lunch and water. Nov. 13. Meet 9:45 a.m. at the Park and Ride, Route 309 near Blackman Street, Wilkes-Barre. 825-7200.
Nescopeck Trail Hike, an easy two-mile walk to observe signs of the changing seasons. Meet at the wooden bridge by the park office. Nescopeck State Park, 1137 Honey Hole Road, Drums. 1 to 2:30 p.m. Nov. 13. Signup: 403-2006.
Holiday Bows and Boughs, create natural wreaths and centerpieces. Pocono Environmental Education Center, Dingmans Ferry. 2 to 4 p.m. Nov. 13. $10 includes materials. 828-2319 or peec.org.
Raptors! An up-close look at live birds of prey. Nescopeck State Park, 1137 Honey Hole Road, Drums. 7 to 8:30 p.m. Nov. 18. Signup: 403-2006.
Turkey Trot, a 5K Walk and Run along with a Tot Trot for age 13 and under. Through downtown Scranton beginning and ending at the Medical Sciences Building, Commonwealth Medical College, 525 Pine St., Scranton. Nov. 19 with check-in 7:30 a.m., Tot Trot at 8:30 a.m. and 5K at 9 a.m. $15 advance, $20 day of race, Tot Trot $5. Info at thecommonwealthmedical.com/turkeytrot.
Art in Nature: Gourd Ornaments, holiday decorating with natural mini gourds. Lackawanna College Environmental Institute, 10 Moffat Drive, Covington Township 9 a.m.-noon Nov. 19. $20. 842-1506.
Merli Sarnoski Park Hike, a moderate seven-mile scenic loop. Meet at the Greater Scranton YMCA, 706 N. Blakely St., Dunmore. 10 a.m. Nov. 20. Free. Sponsored by the Sierra Club. 388-2338.
Susquehanna Trailers Hike, 6.5 moderate miles on the Watres Trail. Nov. 20. Meet 11:45 a.m. at the Park and Ride, Route 315, Dupont. 655-4979.
Introduction to Astronomy, an evening of star-gazing. Adults only. Pocono Environmental Education Center, Brisco Mountain and Emery roads, Dingmans Ferry. 7 to 9 p.m. Nov. 20. $5. 828-2319 or peec.org.
Susquehanna Trailers Hike, two easy miles around downtown Wilkes-Barre’s historic district. Nov. 27. Meet 1:45 p.m. at the boat launch area under the Market Street Bridge in Nesbitt Park. 825-7200.
Susquehanna Trailers Hike, 8.5 difficult miles at Lehigh Gorge State Park. Bring lunch and water. Dec. 4. Meet 9:45 a.m. at Sear’s Automotive parking lot, Wyoming Valley Mall, Wilkes-Barre Township. 283-1312.
Susquehanna Trailers Hike, five easy miles at Moon Lake County Park. Dec. 11. Meet 12:45 p.m. at the First National Bank, Routes 118 and 29, Pike’s Creek. 256-9743.
Susquehanna Trailers Hike, nine moderate miles at Broad Mountain. Bring lunch and water. Dec. 18. Meet 9:45 a.m. at the Park and Ride, Route 309 near Blackman Street, Wilkes-Barre. 825-7200.