Some colleges form consortia with other colleges and travel together. Such joint information sessions are very interesting and pack a lot of information into one meeting. Sometimes one member of a consortium will post the joint travel schedule for all the colleges before any of the other consortium members do, so check each college website for the schedules.
Exploring College Options (Duke, Georgetown, Harvard, Penn, Stanford)
Exploring College Options
Eight of the Best Colleges Consortium (Claremont McKenna College, Colorado College, Connecticut College, Grinnell College, Haverford College, Kenyon College, Macalester College, Sarah Lawrence College)
Eight of the Best, One The Road, Admission, Claremont McKenna College
Lutherancolleges.org
Map & Schedule
Claremont Colleges
Claremont Colleges Receptions, One The Road, Admission, Claremont McKenna College, Claremont McKenna College
And plenty of colleges schedule individual visits to college fairs or to stand-alone college information sessions.
Clark University
Clark University | Admissions | Clark on the Road - Information Sessions
Cornell College (Mt. Vernon, IA)
Off-Campus Events
Davidson College
Davidson in Your Area
Georgetown University (showing schedule of Exploring College Options joint programs)
Georgetown University- Office of Undergraduate Admissions
Harvard University (this tends to be updated rather late)
Harvard College Admissions Office: Harvard in Your Hometown
Indiana University
https://www.indiana.edu/~iuadmit/events/index.php
Johns Hopkins University
Hopkins Undergraduate Admissions :: Visit :: Off-Campus Events
Knox College
Knox on the Road - Knox College
Linfield College
Campus Visit: Fairs and Visits
New York University
NYU > Undergraduate Admissions > Explore NYU > Visiting Us > Off-Campus Visits
Northeastern University
Visit Campus > NU In Your Area
Penn State
Penn State Visits You! - Penn State Undergraduate Admissions
Purdue University
Purdue University Undergraduate Admissions: visiting: Purdue Comes to You
Savannah College of Art and Design
Savannah College of Art and Design > SCAD Information Sessions
University of Chicago (includes joint programs with Brown University, Columbia University, Cornell University, and Rice University)
https://collegeadmissions.uchicago.edu/level2.asp?id=90
University of Miami
Events in Your Area | University of Miami
University of Minnesota
College Fairs
University of Pennsylvania (including Exploring College Options joint programs)
Penn Admissions: Penn in Your Town
Yale University (listing joint events with Brown and MIT)
http://admissions.yale.edu/events/
Please reply to this thread with your impressions of sessions that you attend.