This page will connect you with various repositories of early Idaho records. Note that many of these have online digital collections, in addition to their physical archives. If you are planning to visit, it's a good idea to make contact first to make sure you won't arrive during a time that the archives is closed, or the material you want to access is unavailable:

Idaho State Historical Society
Website: http://www.idahohistory.net/
Address: 2205 Old Penitentiary Road, Boise, Idaho 83712
Phone: 208-334-3356
Fax: 208-334-2774
EMail: research@ishs.idaho.gov
Hours: Wednesday through Saturday: 9 a.m. - 5 p.m.

University of Idaho, Special Collections and Archives
Website: http://www.lib.uidaho.edu/special-collections/
Address: 1st floor of library, U of Idaho, Moscow, Idaho
Phone: (208) 885-7951
EMail: libspec@uidaho.edu
Hours: 11:00 am to 3:00 pm, Monday - Friday

Idaho State University, Special Collections and University Archives
Website: http://www.isu.edu/library/special/
Address: Eli M. Oboler Library, Room B36, 850 South 9th Avenue, Campus Box 8089, Pocatello, ID 83209-8089
Phone: (208) 282-3249
EMail: Karen Kearns, Head of Special Collections & University Archives
EMail: Robin Stanger, Library Assistant I - stanrobi@isu.edu
Hours: Monday through Friday, 7:30 am to 4:30 pm

Boise State University, Special Collections and Archives
Website: http://library.boisestate.edu/Special/
Address: 1910 University Drive • Boise, ID 83725-1430
Phone: 208-426-1204
EMail: archives@boisestate.edu
Hours: Monday through Friday, 8 am to 5 pm

Brigham Young University - Idaho, Special Collections
Website: http://www.byui.edu/spc/
Address: McKay Library Room 220, Rexburg, Idaho
Phone: (208) 496-2986
EMail: powellj@byui.edu
Hours: Mon-Fri, 9:00 AM - 5:00 PM