The home block, 737ha Spring Valley, is owned by Mr and Mrs Wyeth and sits on the boundary of the Tararua State Forest. Another 250ha is leased.
Mr Wyeth managed Spring Valley for his parents for a year then sharefarmed with them for two years before he and Lynley purchased the farm in 2001.
With a heavy focus on breeding and finishing sheep, Spring Valley Enterprises wintered 6850 ewes and 2500 hoggets last year, along with 220 breeding cows and replacement heifers, 200 R1 cattle and 150 R2 cattle. In addition, about 2500 ewe lambs are also farmed on contract on other family properties.
Judges said the health and quality of stock is a highlight of the operation.
They were impressed with the complex level of monitoring of both stock and pasture on the property, noting the couple's willingness to set new boundaries and embrace new technology.
EID is used extensively, and all facets of the operation are comprehensively analysed.
Lambing dates are staggered over a five-week period to reduce the risk of loss in bad weather while also spreading the workload during lambing, docking and weaning.
Triplet-bearing ewes are lambed undercover to improve survivability.
Judges also noted the "impressive utilisation and management of plantain" on the farm.
The pair run the operation with the help of Simon Johnston and Andrew McKay.
Judges said the Wyeths clearly have strong respect for their staff. All team members have a passion for the property and this creates a strong team ethic.
They also praised the Wyeths' care for their environment and their commitment to enhancing biodiversity. Rock screes on the steeper contour are carefully managed, and riparian and other sensitive areas have been protected and planted. A 2.5ha wetland is covered by a QEII National Trust covenant.
Currently a Beef+Lamb New Zealand demonstration farm, Spring Valley has been a finalist in the "Glammie" awards for the last three years. The Wyeths, who have two sons, also won the Best Livestock Farm Award in the 2004 Greater Wellington Ballance Farm Environment Awards.
"Matt and Lynley are hugely committed to the success of Spring Valley but they are also committed to the success of sheep meat production in New Zealand," the judges said.