Portage Lake Observatory was created in 1948.
Portage Lake Lift Bridge was created in 1959.
The address of the Portage Lake Historical Society is: Po Box 65, Portage Lake, ME 04768-0065
No. Portage Lake in Pinckney Michigan was not man made. :)
Portage College was created in 1968.
Portage Bridge was created in 1973.
Portage Theater was created in 1920.
The address of the Portage Lake District Library is: 58 Huron Street, Houghton, 49931 2166
The phone number of the Portage Public Library is: 219-763-1508.
Allegheny Portage Railroad was created in 1831.
Oregon Portage Railroad was created in 1858.
Portage Trail Conference was created in 2005.
Bridge in Portage Township was created in 1832.