The phone number of the Grand Portage National Monument is: 218-475-0123.
Voyageurs National Park is the only NPS site designated a National Park. However, a number of other National Park Service sites exist in Minnesota, including Pipestone National Monument, Mississippi National Scenic River, Grand Portage National Monument, and North Country National Scenic Trail.
The phone number of the Cabrillo National Monument is: 619-557-5450.
The phone number of the Scotts Bluff National Monument is: 308-436-4340.
The phone number of the Fort Pulaski National Monument is: 912-786-5787.
The phone number of the Portage District Library is: 269-329-4542.
The phone number of the Portage Area Historical Society is: 814-736-9223.
The phone number of the Portage Ww Ii History Museum is: 608-742-1052.
The phone number of the Portage Public Library is: 219-763-1508.
The phone number of the Portage-Cragin Branch is: 312-744-0152.
It was established as a National Monument by Presidential Proclamation Number 1713, 15 October, 1924. http://www4.law.cornell.edu/uscode/html/uscode16/usc_sec_16_00000431----000-notes.html
The phone number of the Portage Lakes Branch Library is: 330-644-7050.
The phone number of the Portage County Public Library is: 715-346-1544.