Erie para Boulder Creek Path loop via Centennial Trail

Ward, Canyon da Mão Esquerda e Lee Hill loop da Pearl Street — Boulder

Jamestown via Old Stage, Lefthand Canyon e Lee Hill Drive do Pearl Street loop -- Boulder

Jamestown via Olde Stage e Highway 36 loop — Boulder

Higiene e loop do lago Carter da Pearl Street -- Boulder

Loop do Reservatório de Boulder via 63rd Street, Niwot Road e 36 da Pearl Street — Boulder

Sunshine e Fourmile Canyons para Gold Hill loop — Boulder

Ward e Lago Brainard via Lee Hill Drive da Rua Pearl — Boulder

Olde Stage e Nelson Road loop através da 63rd Street, Cottonwood e Goose Creek Trails a partir da Pearl Street – Gravel – Boulder

Chapman Drive e loop de Flagstaff da Pearl Street - Gravel - Boulder

Jamestown e Ward loop via Super James Lee Hill da Pearl Street – Gravel – Boulder

Volta ao redor do Rabbit Mountain — Boulder

De Westminster a Boulder via a US 36 Bikeway