There is a National Park Historic Site with a museum etc just west of Hollidaysburg. It tells and shows about the Portage Railroad. I live in Western New York and my wife and I visited the area some years ago. My interest in the area is that it has the highest concentration of Salyards in the US. At one time an area telephone directory had 29 Salyards listed in it. No relation to me as my roots are in Virginia. I just like to do research on any and all Salyards.
Click on this link to read about the national historic site: