Boulder-area artist Teresa Booth Brown is best known for her non-objective paintings, but for this impressive solo at Ironton, she decided to do something different by presenting her distinct, if conceptually related, drawings. For most of them, she embraced an unusual process unlike ordinary drafting: Instead of making her marks with pencils, she did it with erasers. Brown began with found book pages that she chose based on their appeal to her; she then evenly covered the chosen pages with graphite powder, selectively erasing the graphite to introduce compositional elements. Put all together, the small works made a big impact. Sadly, though, this was one of the last shows at Ironton Gallery, which closed in January, though Ironton's studios remain up and running. Since 2004, artist Jill Hadley Hooper had run Ironton Gallery — with help from her partner, Hugh Graham — and invited some of the area's most interesting artists, such as Brown, to exhibit.