Inconspicuous trail with a lake. You could consider this a "walk and grab" type cache. Short walk depending on where you parked. Watch for the "Private Parking" signs.
No map gives this lake a name. (I know the police have found more than one stolen car sunk here in the past)
Take a stroll around the lake. It is short but pretty.
Be kind to the vegetation, grass, and trees.
You might need tweezers and definately a writing implement.
Congratulations to vegantriathlete for FTF 
Possible change on the coordiates, try these coordinates:
N 39° 47.443 W 105° 04.424 ... thanks to vegantriathlete for the update.