Triangle J Ranch and Altenburg Super Baldy Ranch LLC Colorado Select 3rd Bull Sale, Centennial Livestock Auction, Fort Collins, Colo., 970-481-2570, 308-627-5085, altenburgsuperbaldy.com, trianglejranch.com
Gnerer Angus Annual Bull Sale, at the ranch, Olive, Mont., 406-498-6113, 406-935-3183, gnererangus.com
Beef Cattle Research Council Parasite Management Webinar, 7 p.m., online. For more information or to register, visit beefresearch.ca.
Black Summit Cattle Annual Bull Sale, Black Summit Cattle Sale Facility, Powell, 307-899-3553, 307-899-1764, blacksummitcattle.com
Montana Performance Bull Co-op with Basin Angus Ranch Annual Bull Sale, Midland Bull Test Sale Facility, Columbus, Mont., 406-780-1219, 406-321-2470, 406-350-0350, basinangus.com
Third Annual High Altitude Bull Sale and Field Day, Laramie Research and Extension Center, Laramie. For more information, visit uwyo.edu/anisci/outreach or contact Shelby Rosasco at srosasco@uwyo.edu or 307-766-2329.
Sinclair Cattle Company 21st Annual Production Sale, Buffalo Livestock Marketing, Buffalo, 307-254-1477, sinclaircattle.com
T-Heart Ranch High Altitude Bull Sale, at the ranch, LaGarita, Colo., 719-850-3082, 719-850-3083, t-heartranch.com
Northwest WY Angus Association 47th Annual Sale, Riverton Livestock Auction, Riverton, 307-868-2595
Lisco & M Diamond 33rd Annual Angus Bull Sale, M Diamond Ranch, Glenrock, 307-359-0167, 307-359-1162, mdiamondangus.com, liscoangus.com
