Scroll Top

Adolph Thomae Jr.


Adolph Thomae, Jr.
Cameron County Commissioner

Adolph Thomae Jr. County Park is named after longtime former County Commissioner Adolph Thomae, Jr.  The Park is situated on the banks of the Arroyo Colorado, and is located whithin the Laguna Atascosa National Wildlife Refuge. The park offers a number of outdoor recreational opportunities such as; lighted fishing piers, picnic areas, playground, a boat ramp with fish cleaning stations and courtesy docks, nature trail, wildlife observation tower, tent camping area, and 35 full-hookup RV sites.  The park is open seven days a week from 6 AM to 10 PM.  For RV reservations please contact the park office at (956) 748-2044.

Office Hours:
7:00 a.m. to 8:00 p.m. (Tuesday – Thursday)
7:00 a.m. to 9:00 p.m. (Friday – Monday)
Address:  37844 Marshall Hutts Road, Rio Hondo, TX 78583

Jerry Castillo, Park Manager
(956) 748-2044


Annual toll tags will be replaced only with a valid receipt or proof of purchase. A replacement fee will be assessed for each replacement tag.

Boat Ramp

Boat Ramp is open to the public. Ramp time limit is 5 minutes to unload and load.


COUNTY’S VETERANS POLICY: Vehicular passes will be offered to veterans at 50% with proper identification – Only one Veterans discount pass per month or per year.

Discounts do not apply to camping or RV spaces. (SEE VETERANS POLICY)