Not much rock that I know of around Bigelow for trad or sport, there are some boulders but I’ve never climbed them. Closer to Weld is Tumbledown that has a few sweet multi pitch trad lines in a very enjoyable setting. The AMC route goes about 5.6 and is a fun way to the summit. Shag, IIRC, has 1 or maybe 0 routes in the 5.8 range, but things may have changed. Clifton, Acadia, Camden, have numerous lines in that range but are a fairly far drive from Bigelow.