This cache is a reverse wherigo located on Rte. 3 in Thornton. To find the exact location, you must either use a Reverse Wherigo cartridge (linked here) or use an online Reverse Wherigo decoder.
You will need these three 6 digit numbers:
404328
897636
755051
The container is a blue cylinder located in a familiar spot. Please bring a pen or pencil so that you can sign the log.
* * * FTF - gowithin and dustah * * *