A 4.25-mile Y-course that goes out-and-back on the Fowler Trail before doing the same on the Eldorado Trail.
| Name | Date and Time | |
|---|---|---|
| 2021 Rattlesnake Ramble (Full Course) | Saturday, September 11, 2021 7:47AM (MDT) | 99 entrants |
| 2019 Rattlesnake Ramble (Full Course) | Saturday, September 14, 2019 7:45AM (MDT) | 109 entrants |
| 2017 Rattlesnake Ramble (Full Course) | Saturday, September 9, 2017 8:00AM (MDT) | 86 entrants |
| 2015 Rattlesnake Ramble (Full Course) | Saturday, September 12, 2015 8:00AM (MDT) | 93 entrants |
| 2013 Rattlesnake Ramble (Full Course) | Saturday, November 9, 2013 8:00AM (MST) | 87 entrants |
| 2011 Rattlesnake Ramble (Full Course) | Saturday, September 17, 2011 8:00AM (MDT) | 74 entrants |
| 2009 Rattlesnake Ramble (Full Course) | Sunday, September 13, 2009 8:00AM (MDT) | 63 entrants |
| 2007 Rattlesnake Ramble (Full Course) | Saturday, September 15, 2007 8:00AM (MDT) | 63 entrants |
| 2005 Rattlesnake Ramble (Full Course) | Saturday, September 17, 2005 8:00AM (MDT) | 35 entrants |