Hillsboro Skatepark (officially Hillsboro Skate Park at Milliken) is a 14,000-square-foot concrete park in Milliken, Colorado, built around one thing above all else: flow. Built by Evergreen Skateparks, the park has a distinctly creative layout that moves away from the typical straight street-plaza design and instead strings together bowls, banks, rounded transitions, ledges, hips, and rolling features into a series of interconnected lines.

The park was designed by local kids. In February 2013 the Town of Milliken asked the four local school principals to pick students who showed leadership and skateboarding skill, and those students became the Milliken Skate Park Leadership Team. They surveyed the town for a "wish list" that included a bowl, spines, lighting, resting space, and a drinking fountain, interviewed skatepark designers, and toured Northern Colorado parks with Billy Coulon of Evergreen Skateparks. Lemonade stands, bake sales, free concerts, and restaurant benefit nights raised local funds, a Great Outdoors Colorado grant followed in December 2013, and the park held its grand opening in August 2014. Shade structures were added later with help from local donors.

The park's transition terrain is its biggest draw. A multi-pocket bowl sits at the heart of the layout, with a narrow section, smaller pockets, rounded walls, and concrete coping that give riders several different ways to approach the same terrain. Around the bowl are smooth banked turns, pump bumps, roll-ins, rounded quarter-pipe-style walls, and unusual transitions that reward riders who can maintain speed and carry momentum.

There is street terrain here as well, including concrete and metal ledges, boxes, pyramids, and other obstacles worked into the flow. However, Hillsboro isn't really a traditional street plaza, and that's part of what makes it interesting. The park is at its best when you stop thinking about individual obstacles and start looking for continuous lines through the entire layout.

The smooth transitions and forgiving variety of terrain make Hillsboro particularly good for skaters learning how to ride bowls and transition. Beginners can progress through the smaller banks and mellow features, while more experienced riders can get creative with the park's unusual shapes and interconnected lines. Skateboards, inline skates, scooters, and BMX bikes are all welcome.

Bright artwork and painted sections add character to the concrete, while the unusual geometry gives the park a playful, almost sculpted feel. It may not have the huge rails and extensive street plazas found at some larger Colorado parks, but its combination of smooth concrete, unusual transitions, and continuous lines gives it a character all its own.