Senior gatherings at the Putnam House 48 Court St. Houlton, Tuesdays and Thursdays, 9-3 p.m. Games, homemade snacks, coffee and socializing.

Caribou Choral Society rehearsals will begin at 7 p.m. each Tuesday evening in the Holy Rosary Church basement. All local singers interested in advanced four-part music are welcome.

Red Cross blood drive, 12:30-5:30 p.m., Fort Fairfield K of C Hall. Download Red Cross blood donor app, visit RedCrossBlood.org or call 1 (800) 733-2767 FMI or an appointment.

Free workshop, Essentials of College Planning, 9 a.m. and again at 12 p.m. at the Presque Isle CareerCenter. FMI: 1 (800) 281-3703 or meoc.maine.edu.

PFLAG (Parents and Friends of Lesbians and Gays) meets every third Wednesday at The Cup Cafe, Houlton Unitarian Church basement, 6-7 p.m.

Farmers' market, 4-7 p.m. in the Brookside Inn parking lot. FMI: 370-0379.

Land Use Planning Commission will discuss adjacency rule at the County Commissioners meeting, 1 p.m. at the Caribou courthouse. LUPC officials available 11:30-1 at the courthouse for questions.

Red Cross blood drive, 12-5 p.m., UMPI. Download Red Cross blood donor app, visit RedCrossBlood.org or call 1 (800) 733-2767 FMI or an appointment.

Knitting workshop with Vicky Larrabee at the Caribou Public Library's Caribou Room, 5:30-7 p.m. No experience necessary.

Knitting/Crocheting Club at the Robert A. Frost Memorial Library, 6 p.m. Bring a project to work on. Teachers available for those who want to learn.