Bolton is nestled in Northwest Vermont, just 25 minutes from Burlington. This guide currently includes full color zoomable photos and lines for 152 boulder problems ranging from V0 to V12. It also provides navigation and GPS-enabled maps that will show you where you are, so you can find the boulders easily.
Purchase a license HERE, then download the free Gunks+ app from your favorite store.
Bolton Bouldering - $12.99