Here is what they have posted on one of their sites -
Yuma Event #9, which will be held the weekend of February 19th.
This event has grown every year and is one of largest in Arizona. Our goal is to provide plenty of fun and games for the weekend and a free Tri-Tip BBQ on Sunday, event day.
There are over 2,000 caches within a 50-mile radius of Yuma. So, there is plenty to do for all age levels and abilities. Yuma has beautiful winter weather and the event is held at Gateway Park near Historic Old Town.
We have a variety of cache types: night caches, desert, water, mountain, city, puzzle, hand-carved containers and event caches. We have an ATM cache and the biggest TB hotel you’ve ever seen!
Come out & enjoy the food, fun and best of all – the caching!!!
and this also -
There are 101 GeoCaches placed for the Yuma Event #9. As the trial name says "101 Bucks" this trail is worth One Hundred and One Dollars!
First To Find Cachers might find a "Special Cache" containing money or a card for money. One cache has a dollar bill in it, two other caches will have a card for a prize of 50.00 dollars each. If a cacher finds both cards one must be left for the second finder to claim the prize.
and they list their prizes -
Garmin Oregon 450t GPS
(5) Jeep'en Jumpers Geocoins
Telescoping Flag Pole
(5) Gerber Multi Tool
High Sierra Hydration Pack
(2) Maglite XL50
(2) Leatherman Squirt PS4
(4) Mini LED Hat Lights
Signal's Home Decoration
And here is the info they list for the warm up on Saturday -
A great opportunity to see Downtown Old Town Yuma and meet your fellow Geocachers prior to the main event the next day.
We realize that this is "Prime caching time"....and with the many new caches placed in Yuma this past year you can be very busy when you arrive; however, if you can make it to Lutes for the Warm Up Event we are sure you'll enjoy a couple of hours visiting old friends and meeting new ones.