Willow Glen Farm, in Association with…

Riverland Farm, est. 1993

For Sale
Competition Highlights


Wendy and Marty Costello, owners of Riverland Farm and ES Donavan, strive to breed, and assist others to breed, quality warmblood horses for sport and for pleasure that embody Donavan's kind and affectionate temperament, his natural talent and striking beauty, and are suitable for the amateur and professional rider alike.

Donavan's long, successful dressage career has demonstrated that he represents the best of the Hanoverian breed, and consequently, the desirable characteristics shared by all warmblood breeds.

Please enjoy our website and come back often.

With Donavan, something wonderful is always happening!

Wendy & Marty Costello
Fax: (262)243-5065

Riverland Farm
13700 N. Riverland Rd.
Mequon, WI 53097


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Drachen Herz is NOT FOR SALE

1999 stallion


8/2/01: Hilda Gurney scored Drachen Herz in the 80%'s, praising his elasticity, lovely reach, large joints, Trot!!, & gave him an 8.5 walk!

Drachen Herz won a High Point Hanoverian award at a Breed Finals and at Devon earned a very respectable 7th Place in a class of 28!

In 2003 Drachen Herz was provisionally approved for breeding by the ISR/Oldenburg NA. So many awards and accomplishments, and so little space on this page! Please go to WIllow Glen Farm for more about Drachen Herz, Donavan's stallion son!

Margaret Goodell of Willow Glen Farm, Sullivan, WI

For more information:
Margaret Goodell

Dressage at the Kentucky Horse Park
with judge, Hilda Gurney
Dressage at Devon 2001.
Placed 7th out of 28 Hanoverians 2 yrs. He was less than 1.7 points from 1st place score!