The McNichols Building in Civic Center is undergoing renovation and won't open again until this fall, but one of the last shows there before it closed was decidedly one of the best efforts of the year. Titled Trine Bumiller: 100 Paintings for 100 Years, the show celebrated the centennial of nearby Rocky Mountain National Park. Bumiller was an artist-in-residence there, and the idea came to her of doing 100 paintings to mark each of the park's 100 years. While living in a cabin during the residency, she created sketches of the scenery she encountered; back in her studio, those sketches led to preliminary watercolor studies for the final abstracted takes on nature. All of the paintings were 24 inches tall, but they had nine different widths, ranging from 6 to 48 inches. Each panel was numbered, with their order in the exhibit determined by a random-number generator. Bumiller installed them at the same height around the entire space so that they functioned as an eye-popping painted band wrapped all the way around the top floor of the McNichols. Like the park itself, the result was simply sublime.