Use these links to answer your questions quickly:

Questions About MSHCP

Question: How does MSHCP affect the individual property owner?

Answer: Our brochure, “Understanding the Western Riverside County Multiple Species Habitat Conservation Plan (MSHCP), A Guide for the Individual Property Owner,” outlines possible impacts on property owners if they live in a single-family home, want to build a new single-family home on a existing parcel, or if they want to subdivide their property. The brochure is available here or at cities’ public information counters.

Question: Just how large an area does MSHCP cover within Western Riverside County?

Answer: The MSHCP covers all of Western Riverside County. Coachella Valley and the desert east of San Gorgonio Pass are not included. Still, Western Riverside County MSHCP covers an area larger than the states of Rhode Island and Delaware. Covering an area of 1,967 square miles, it is also larger than 32 of the counties within the State of California. Click here to download a small map showing the MSHCP’s size compared with California counties.

Question: Why was MSHCP developed for Western Riverside County?

Answer: MSHCP resulted from a comprehensive effort to shape Riverside County’s future, balancing the rapid growth the County has experienced in the 1980s and 90s with the challenges of traffic congestion, and the listing of native species of plants and animals as threatened or endangered. MSHCP is the largest conservation plan in the nation.

After in-depth environmental and transportation studies and extensive public outreach, the Riverside County Integrated Plan developed a vision for Riverside County’s future that now guides development, provides for economic growth, solves transportation problems, and protects the environment.

Question: How much land is designated for natural reserves under MSHCP?

Answer: MSHCP sets aside 500,000 acres for preservation among 1.26 million acres covered by the Plan.

Question: How much land has been acquired or set aside to date?

Answer: The numbers tell RCA’s success story in acquiring land for animal and plant reserves and achieving MSHCP goals. The Plan covers 1.26 million acres. Of that, 500,000 acres, or 40%, is set aside for preservation. Already conserved were 347,000 acres of public or quasi-public lands. RCA and its state and federal partner agencies then added more lands. Today, 79% of the total reserves are in place.

Question: What species of plants and animals are protected?

Answer: One hundred forty-six species of plants and animals are protected. A full list is available in Volume 4, Section 2.3.4 of the MSHCP.

Questions About RCA

Question: What does RCA do?

Answer: RCA acquires, administers, operates, and maintains land and facilities for ecosystem conservation and habitat reserves for rare, threatened, and endangered species listed in the MSHCP.

Question: Who are the members of RCA?

Answer: Riverside County and all cities in Western Riverside County within MSHCP boundaries, roughly west of San Gorgonio Pass, are RCA members. MSHCP covers unincorporated Western Riverside County and cities of Banning, Beaumont, Calimesa, Canyon Lake, Corona, Eastvale, Hemet, Jurupa Valley, Lake Elsinore, Moreno Valley, Menifee, Murrieta, Norco, Perris, Riverside, San Jacinto, Temecula, and Wildomar. Other participants are Riverside County Flood Control and Water Conservation District, Riverside County Parks and Open Space District, Riverside County Waste Management Department, Riverside County Transportation Commission, California Department of Transportation, and California Department of Parks and Recreation.

Question: How is RCA governed?

Answer: RCA is governed by a Board of Directors. Each city government appoints a member. The County of Riverside is represented by all five members of the Board of Supervisors. An Executive Committee of seven members oversees administrative functions.

Question: Where are RCA offices located and how do I get there?

The RCA offices are located at:
Riverside Centre Building
3403 10th Street, Suite 320
Riverside, CA 92501

Get a map

From the 91 Freeway eastbound:
Exit 14th Street
Turn left on 14th
Turn right on Lime Street, which is the second street
Turn left on 10th Street (loading zone is on right)
To parking garage:
Turn right on Lemon Street
Parking garage entrance is on right, close to corner of 10th and Lemon
Take a ticket and park in the visitor parking area.
Please note that we are no longer able to validate parking.
From I-215 southbound or 91 Freeway westbound, near 60 Freeway:
Exit Mission Inn Avenue
Turn right on Mission Inn Avenue
Turn left on Lime Street, which is the first light
Turn right on 10th Street, 3 blocks down. (loading zone is on right)
To parking garage:
Turn right on Lemon Street, which is the first street
Parking garage entrance is on right, close to corner of 10th and Lemon
Take a ticket and park in visitor parking area
Please note that we are no longer able to validate parking.
Note: You may see “Security Bank” signs on top of the building and at street level from Lime Street.

Question: What is the RCA contact information?

Western Riverside County Regional Conservation Authority
Riverside Centre Building
3403 10th Street, Suite 320
Riverside, CA 92501
Phone (951) 955-9700
Fax (951) 955-8873

Question: What are the RCA business hours?

Business Hours:
Monday to Friday: 8:00 am to 5:00 pm

Questions About the Website or Viewing Documents:

Question: Why do some MSHCP Documents not open and cannot be viewed correctly with Adobe Reader within a web browser?

Answer: PDF Documents have been tested and developed using Adobe versions 5.0 and 7.0. However, some documents seem to not display correctly within Adobe 6.0 Reader. If this occurs we recommend that you upgrade your viewer to the latest version of Adobe Reader. This software is free and can be downloaded by clicking the icon below.


Question: Why is it that when you open a PDF Document all you get is a blank screen and the browser indicates it has completed loading?

Answer: This situation occurs when Adobe Reader has not been properly installed on your computer. We recommend that you download the free Adobe Acrobat Reader and re-install it on your local system.

If you have identified a problem please email the RCA Webmaster we will attempt to assist you with any problems or questions.