Online Registration

The next Caja del Rio Endurance Ride will be held on May 23-25, 2025!

While not required, preregistration is greatly appreciated as it helps us plan and budget for the ride. For your convenience, an online registration form is provided below. Or, if you prefer, you can print and mail a paper entry form.

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Rider Information

Current AERC Member?

Choose one option

If Rider is a Junior, please fill in the following:


Equine Information

Choose one option


Ride Day & Distance Selection

Day 1 Entry (Friday, May 23, 2025)

Day 2 Entry (Saturday, May 24, 2025)

Day 3 Entry (Sunday, May 25, 2025)


Rules and Regulations Consent

As a participant in the Caja del Rio Endurance Ride, I agree to abide by the Rules of AERC and the aforementioned ride. I understand that endurance riding involves being in remote areas for extended periods of time, far from communications, transportation, and medical facilities; that these areas have many natural and man-made hazards which ride management cannot anticipate, identify, modify, or eliminate; that horses can be excitable, difficult to control, and unpredictable; and that accidents can happen to anyone at any time. I agree to take full responsibility for myself and the animal I am riding. I will hold AERC, ride management, all ride personnel, and all property owners over whose land the ride passes blameless for any accident, injury, or loss that might occur due to my participation in this ride, and free from all liability for such injury or loss.

Junior riders (under 16 years as of the first day of the current ride season) entered in the ride will be accepted and allowed to ride only if accompanied by an adult rider (21 or over). Juniors will not be allowed to start or continue on from any point without an adult sponsor. JUNIOR RIDERS MUST WEAR PROTECTIVE HELMETS.

All equines competing in endurance distances (25 miles and above) are required to wear some form of hoof protection.

Entry Fees and Payment

Entry Fees

Senior Rider (25, 30 or 50 miles) — Entry Fee$135.00
Junior Rider (25, 30 or 50 miles) — Entry Fee
(Free entry does NOT include AERC nonmember fee)
$0.00
Intro Rider — Entry Fee$60.00
AERC One-Day Membership
(required for nonmembers riding 25/30 or 50 miles)
$20.00
Pioneer Entry Discount
(entering all three days, any distance)
-($20.00)
Entry Fee Table

Payment Selection

Choose one option

  • If you selected online payment, payment instructions will be sent to the email you provided upon receipt of this registration. Please check your spam folder!
  • If you selected payment by mail, please mail a check for the total due using the fee table above.

Refund Policy

In the event a preregistered rider is unable to attend the ride, a full refund of the entry fee will be provided up until May 15, 2025, after which a $10 fee will be deducted from each ride day of the refund amount.