The Bertsch-Hokendauqua-Catasauqua Watershed Association will sponsor a free, educational nature walk in celebration of Earth Day on the grounds of Mary Immaculate Center in Lehigh Township, Northampton County on Sunday, April 22 - Earth Day 2012.

Program participants will meet at 12:45 p.m. in the parking lot at Indian Trail Park, at the junction of Route 248 and Indian Trail Road, Lehigh Township, adjacent to the grounds of Mary Immaculate Center. Participants will leave the parking lot on foot at 1 p.m. for a modest walk at a comfortable pace on the Center grounds.

Mary Immaculate Center is one of the largest, contiguously forested tracts of land in northwestern Northampton County. The land includes a reach of Indian Creek, two small ponds, numerous wetlands, springs and seeps, rock outcrops and breathtaking views from of the highest vantage points in the region. The Center is owned by the Archdioceses of Philadelphia, so public access is limited to planned events like this.

Naturalists Bud Cole, local outdoor writer and columnist, and Bob Hosking, natural resources professional, will lead participants through the forests and fields of the Mary Immaculate Center in search of spring wildflowers, songbirds and butterflies. This walk covers several miles of variable terrain, including some fairly steep grades, on the property's internal road system.

Participants should wear supportive, comfortable shoes and appropriate clothing for several hours of outdoor adventure. They should also bring a snack and water.

While the program is free, registration is required. To register, call Bud Cole at 610-767-4042 or send email to bbbcole@enter.net.