Dumb Friends League

The Dumb Friends League — the name is a holdover from the early twentieth century when "dumb" still primarily meant "voiceless" rather than "unintelligent" — was founded in 1910 and is the oldest and largest humane society in Denver. The organization has retained the original name despite the obvious modern reading, partly out of institutional continuity and partly because the name is a recognizable piece of Denver civic history.

DFL operates two main locations: the Leslie A. Malone Center on South Quebec Street in southeast Denver (the main adoption campus), and the Buddy Center in Castle Rock, which serves the Front Range south of Denver. The organization also operates the Harmony Equine Center in Franktown, one of the largest equine rescue and rehabilitation facilities in the Rocky Mountain west.

How they work

DFL adoptions begin online or in person. The application is short, the interview is conversational, and meet-and-greets happen for animals that are a likely fit. Adoption fees vary by animal and time of year and are listed on the website.

The shelter operates as no-kill in current practice. Animals are not euthanized for space, time, or treatable medical or behavioral conditions.

Beyond standard adoptions, DFL runs:

• The Harmony Equine Center — handles roughly 200 horses per year, primarily from cruelty cases, owner surrenders, and rural Colorado rescue situations. The facility includes rehabilitation, training, and adoption services for horses.
• The Solutions program — a pet retention initiative providing free behavior consultations, food assistance, and resource referrals to households at risk of surrendering their animals.
• A full-service veterinary clinic at the Quebec Street campus, available to adopted animals and the broader community.
• Foster networks handling puppies, kittens, post-surgery recoveries, and seniors.
• Behavior and training programs for dogs requiring rehabilitation before adoption.
• Humane investigators with statewide authority to investigate cruelty cases.

The longer arc

The Dumb Friends League has been operating long enough to predate Denver's modern shape as a city. The organization's archives include cases from 1910s and 1920s Denver — at the time, humane society work was largely concerned with the welfare of working horses, of which Denver had many. The mission shifted with the city.

The South Quebec campus, expanded multiple times since the 1980s, has become one of the more recognizable Denver nonprofit facilities. The annual Furry Scurry fundraising walk at Washington Park draws thousands of dogs and walkers and is a meaningful fixture of the Denver civic calendar. The volunteer dog-walker rotation passes through the southeast Denver neighborhoods daily.

You can support DFL in the standard ways:

• Adopt from the Quebec Street center, the Buddy Center in Castle Rock, or the Harmony Equine Center if you're considering a horse.
• Foster — the foster network is large and constantly recruiting.
• Volunteer — dog walking, cat socializing, medical clinic support, equine center work, event support.
• Donate — DFL publishes detailed financials and maintains strong charity ratings.

Field & Era at Dumb Friends League

The South Quebec coordinates appear regularly in Companion Edition orders shipped throughout Denver, Aurora, Boulder, and the broader Front Range. If you adopted from the Dumb Friends League and want the address set on archival paper, see the Companion Edition. 10% of every Companion order supports a rescue partner.

Last verified May 29, 2026. Facts about hours, intake policies, and adoption fees can change. Confirm with Dumb Friends League directly before visiting.