World Library  
Flag as Inappropriate
Email this Article

Baseline Road (Colorado)

Baseline Road is a major east-west street in Boulder, Colorado that extends east of the city through parts of four counties. The western terminus of Baseline Road is at Flagstaff Mountain in the City of Boulder Mountain Parks. The eastern terminus is at 16800 Watkins Road, about 6 miles (9.7 km) east of Lochbuie on the boundary between Adams and Weld Counties. The total length of Baseline Road is approximately 38 miles (61 km), all of which is within the Denver-Aurora-Boulder Combined Statistical Area in Colorado.


  • Origin of name 1
  • Official Names for Road 2
  • Description 3
  • Counties 4
  • Cities and Towns 5
  • Highway Junctions 6
  • Termini 7
  • External links 8

Origin of name

On May 30, 1854, the Kansas-Nebraska Act created the Kansas Territory and the Nebraska Territory, divided by the 40th parallel north. The Pike's Peak Gold Rush of 1858-1861 lured thousands of gold seekers into the goldfields of the northwestern Kansas Territory and the southwestern Nebraska Territory. On February 28, 1861, the western portion of the Kansas Territory and the southwestern portion of the Nebraska Territory were incorporated into the new Colorado Territory. The 40th parallel became the primary baseline (surveying) for surveying the land in the eastern portion of the new territory, and a road was eventually cut along the survey baseline.

Official Names for Road

The road along the 40th parallel is officially named Baseline Road in Boulder County and the City and County of Broomfield, 168th Avenue in Adams County, and County Line Road or Weld County Road 2 in Weld County.

A 7-mile (11 km) stretch of Baseline Road, from US 287 in Lafayette to I-25 in Broomfield, is part of State Highway 7.


Baseline Road descends from Flagstaff Mountain (site of the 1935 CCC Sunrise Amphitheatre) and runs through the city of Boulder for its first four miles (6 km). Within Boulder, it passes the Colorado Chautauqua, a National Historic Landmark, near 9th Street; crosses State Highway 93 (Broadway); then passes the University of Colorado Law School just east of Broadway. The road then crosses US 36 (28th Street), passes the Williams Village dormitory towers of the University of Colorado, and crosses State Highway 157 (Foothills Parkway). East of 55th Street, the road seems to terminate at Cherryvale Road. It actually continues, shifted slightly to the north, following a small northbound stretch of Cherryvale. Thereafter, the road leaves the city of Boulder and takes on a more rural character until approaching State Highway 42 (95th Street). At that point the more urban surroundings of Lafayette are evident, and the next two miles (3 km) run through the heart of Lafayette, including the road junction with US 287 (Wadsworth Boulevard).

About one mile (1.6 km) beyond the eastern city limits of Lafayette, the road crosses the eastern boundary of Boulder County and passes the Erie Municipal Airport. For two miles (3 km) beyond this point, Baseline Road forms the boundary between Weld County and the City and County of Broomfield. For the next two miles (3 km), from Sheridan Parkway to the interchange with I-25, the road passes through a rural northern portion of the City and County of Broomfield.

Just east of I-25, the road abuts a commercial area in the extreme northern part of the city of Thornton. For the next mile, from this point to York Street, Baseline Road marks the boundary between Adams County and the City and County of Broomfield. From York Street east, the road forms the boundary between Adams County and Weld County for the remainder of its length.

East of York Street, about 10 miles (16 km) of rural road ensue, until Brighton is entered near US 85. Baseline Road passes through the northern part of Brighton for about five miles (8 km), eventually reaching the town of Lochbuie and the interchange with I-76. Beyond I-76 the road once again takes on a rural character and continues to its eastern terminus at 16800 Watkins Road.


Cities and Towns

Highway Junctions


  • Western terminus:
  • Eastern terminus:

External links

  • pictures of The Colorado Chautauqua and Sunrise Amphitheatre
  • map: western terminus, Flagstaff Mountain
  • map: Erie Municipal Airport
  • map: I-25 interchange
  • map: eastern terminus, 16800 Watkins Road
This article was sourced from Creative Commons Attribution-ShareAlike License; additional terms may apply. World Heritage Encyclopedia content is assembled from numerous content providers, Open Access Publishing, and in compliance with The Fair Access to Science and Technology Research Act (FASTR), Wikimedia Foundation, Inc., Public Library of Science, The Encyclopedia of Life, Open Book Publishers (OBP), PubMed, U.S. National Library of Medicine, National Center for Biotechnology Information, U.S. National Library of Medicine, National Institutes of Health (NIH), U.S. Department of Health & Human Services, and, which sources content from all federal, state, local, tribal, and territorial government publication portals (.gov, .mil, .edu). Funding for and content contributors is made possible from the U.S. Congress, E-Government Act of 2002.
Crowd sourced content that is contributed to World Heritage Encyclopedia is peer reviewed and edited by our editorial staff to ensure quality scholarly research articles.
By using this site, you agree to the Terms of Use and Privacy Policy. World Heritage Encyclopedia™ is a registered trademark of the World Public Library Association, a non-profit organization.

Copyright © World Library Foundation. All rights reserved. eBooks from World eBook Library are sponsored by the World Library Foundation,
a 501c(4) Member's Support Non-Profit Organization, and is NOT affiliated with any governmental agency or department.