The cache is NOT at the Posted Coordinates.
This is a multi-stage Folsom experiential cache - find the Natoma Time Machine, then solve a simple field puzzle and find the cache!
On his way to meet Stafford at the Mill, Scott passes by the Bridge in Coloma, and stumbles on the Natoma Time Machine, which was mysteriously, mystically, and magically transported from the 20th Century to his time. Enamored with the Natoma Time Machine, Scott never makes it to the Mill, nor meets Stafford.
As Scott did, find the Natoma Time Machine in the 21st Century to obtain the required clues to locate the cache.
Simple Field Puzzle:
Carefully observe the Natoma Time Machine (from a distance - there are two great viewing angles) and find the highest even number.
Once again, carefully observe the Natoma Time Machine (from a distance - there are two great viewing angles), and find the lowest odd number.
Add these two numbers together and call it the SUM.
Using the SUM, you will be searching for the cache at SUM feet NE from the Natoma Time Machine.