Colorado Fun Fact:
The Dwight Eisenhower Memorial Tunnel between Clear Creek & Summit counties is the highest auto tunnel in the world. Bored at an elevation of 11,000 feet under the Continental Divide, it is 8,960 feet long. During construction approximately 1 million cubic yards of material was cleared from each bore. 190,000 cubic yards of concrete was used for each tunnel lining. The Dwight Eisenhower Memorial Tunnel electric bill averages approximately $70,000 per month.
Letterbox Hybrid Directions:
Letterbox is at the listed coordinates.
Stamp is for letterbox logging only and is NOT a trade item. Please leave the stamp in the cache.
Bring your own inkpad and notebook.
Colorado Star Series:
See Colorado Star #01 – Stars Across America (GC4E0DH) for important details.