19 Yr Old Mare at Feedlot

Tossed out after who knows why...and this poor mare is possibly bred back. No one gave her a thought. Can anyone help?

One of these days I can hope this mare will have her own person and a loving home. She has been used as a broodmare in the past and I don't know what training she has had or if she is broke to ride. She is very easy to handle, affectionate, and gets along well in a herd. She is a larger mare, about 15hh, and in good body condition. She appears to be sound, healthy from what I can see, and has a medium build. She has a hangman brand on her hip as shown. She is suspected to be in foal but it has not been confirmed. 

Deadline: 6/03/15 extended to 6/17/15
Location: Sunnyside, WA
Contact: Sabrina 206-250-5115