Allegheny Portage Railroad National

Historic Site, Gallitzin, 886-6150

Charles Dickens and his 1842 Trip to America, 2 p.m. Saturday. Free admission.

Greenwood Furnace State Park, 15795 Greenwood Road, Huntingdon, 667-1800

SnowFest and Polar Plunge, 11 a.m. to 4 p.m. Saturday. SnowFest activities include broomball, ice skating, free snowshoe trials, educational programs and more. Register at www.PArunners

.com for SnowFest 5-Miler Race or register the day of the race at Pavilion No. 7 until 12:45 p.m. Polar Plunge into Greenwood Lake begins at 2:30 p.m.

Park programs will be published on Page D2 Wednesdays. State parks and recreation areas that wish to be included should fax their programs to 946-7540 or email community@altoona by noon the preceding Friday.