The Longmont Public Library's Meeting Rooms are located in the West foyer hallway, North of the main West-side lobby.
The Conference Room is the first room to the left (West) as you travel North in the hallway, and the large meeting room (A/B) is the second room to the left, near the keyhole garden entrance.
The first floor restrooms are located directly across from the Conference Room, and the Meeting Room Kitchen is located in between the rooms, connected to A/B through a retractable divider.
Both rooms have smart-locks that utilize 4-digit, randomly-generated PIN codes to unlock the doors.