It's probably no surprise that this boulder is located on 1st Street. It's between 14th Avenue West and Piedmont Avenue. Park on the roadside beneath the huge powerlines. You can see the top of the boulder peeking out from behind the railing on the downhill side of the road..
Crag in Brief:
This little erratic is indeed "the best boulder on First Street". Again bring a crashpad and watch out for broken glass. The lines are often crimpy and steep, the landing is flat, and there are endless variations to the problems listed.