Idaho in recent months put government wildlife agents in helicopters to shoot entire packs that were preying on big game herds. Montana officials last year lifted wolf hunting and trapping quotas, increased the bag limit to five wolves per hunter and lowered the fees for out-of-state licenses.
In Utah, there is little to report, according to John Shivik, mammals coordinator for the Division of Wildlife Resources.
"In 2013, there were no credible or likely sightings of wolves reported," Shivik said. "We are in the same holding pattern we have been for the last several years. Wolf populations are doing well in the north and the states feel that maintains the idea of wanting wolves delisted."
Wildlife advocates have warned the population could crash, but that hasn't happened: Wolf numbers are down just 6 percent since the animals lost federal protections in 2011.
"Wolves are very tenacious, they're very prolific," said Mike Jimenez, federal wolf recovery coordinator for the Rockies and a biologist with the U.S. Fish and Wildlife Service. "The population is very secure, but it doesn't remove the controversy."
Jimenez says he expects the population to gradually decline over time in the face of the states' efforts but remain healthy overall. The only state to see a significant drop last year was Idaho, down 63 wolves to at least 659.
On the livestock side, wolves in the Northern Rockies killed at least 143 cattle and 476 sheep in 2013. That's 51 fewer head of cattle and six fewer sheep than the prior year.
Government-sponsored campaigns exterminated gray wolves across most of the Lower 48 states early last century.
They've come back strong since being re-introduced almost two decades ago, and now occupy large parts of Montana, Idaho, Wyoming, Washington and Oregon. Part of Utah falls within the Northern Rockies region but has no wolves.
The Great Lakes are home to a second major population of roughly 4,000 wolves.
Amid a pending proposal to lift protections across much of the remaining Lower 48 states, the success of restoration efforts to date hasn't quieted the intense debate over whether there are too many or too few wolves.
Montana Fish, Wildlife and Parks spokesman Ron Aasheim said officials were surprised the state's 2013 population of at least 627 wolves remained statistically unchanged from the 625 counted in 2012.
A new rule adopted last month makes it easier for Montana livestock owners to shoot wolves without a permit. Aasheim said that's expected to have limited impact.