About Hidden Valley
Hidden Valley Wildlife Area is located along the Santa Ana River, east of Norco at 11401 Arlington Avenue, one mile west of La Sierra Avenue, in Riverside, CA. It is set on 1,500 scenic acres and has access to 25 miles of hiking and equestrian trails. Bicyclists also have the opportunity ride along the 8 mile stretch of the Santa Ana River Trail that links the San Bernardino Mountains to the Pacific Ocean. Visitors can get away from the noise, lights of the city, and enjoy the beautiful views of the river or the bluff overlooking the wetland ponds set aside for migratory birds. Picnic areas and a self-guided Nature Trail await visitors along with various seasonal events and nature education outreach programs.
The Hidden Valley Nature Center overlooks the Santa Ana River watershed and offers hands-on experiences with live animals, snakes, reptiles. A short hike to the educational pond offers viewing of migratory bird species, flora and fauna, and aquatic life.
Location
11401 Arlington Ave, Riverside, CA 92505
Reserve Hours
Open for public day use:
7:00 a.m. - 4:30 p.m., Monday - Sunday
Reserve Fees
$5 per person, per day and $2 per pet
General Park Rules
RULES APPLICABLE TO DISTRICT REGIONAL PARKS
The following rules apply to all regional parks in Riverside County Regional Park and Open-Space
District. For rules specific to each park, please refer to the corresponding section for each park.
1. All local, state, and federal laws shall be enforced in all District Regional Parks. County of
Riverside Ordinance 328 shall be enforced in all District Regional Parks.
2. The posted speed limit shall be observed.
3. Vehicles must remain on park roads and/or designated parking spaces.
4. Child/youth is defined as age 12 and under, children under the age of 2 are granted free
entry into the parks.
5. All pet fees are per animal. Maximum three (3) dogs/horses total.
6. Service dogs are exempt from the pet fee and the maximum limit of three (3) dogs/horses.
7. Dogs must be controlled and on a leash at all times no longer than six (6) feet in length.
8. Never leave pets unattended. Pets must be kept inside RV or tent overnight.
9. Pet owners are responsible for cleaning up waste generated from their pet(s).
10. Hunting and use of firearms is prohibited in the park.
11. Never disturb or attempt to handle wildlife.
12. Fireworks are prohibited.
13. No off-road vehicles allowed. Street legal vehicles only.
14. Remote controlled flying objects, drones, bow and arrows/archery are not permitted unless
authorized in advance by Director or his/her Designee.
15. Do not remove or damage flowers, rocks, plants, animals, artifacts, and other park features.
16. No attaching, tying, nailing, or screwing of items to the trees. Tampering with these items is a
violation of County Ordinance 328.
17. Amplified music is not permitted unless authorized in advance by the District. Small radios are
permitted except during hours 10pm – 6am so long as the noise does not disturb the peace and
quiet of the campground or neighboring sites.
18. Know before you go! Guests are encouraged to check the website or call the park in advance of
their visit to see if there are temporary rules in place (i.e. campfire restrictions, water
conservation and water use restrictions due to statewide drought, etc.)
19. Notify Park Ranger immediately of any emergency, damage, or other problems arise
