Big Bear City
Anaheim
Irvine
Ontario
Oxnard
Long Beach
Los Angeles
Pasadena
Riverside
Escondido
San BernardinoThousand Oaks
Santa Clarita
San Diego
Ventura
Big Bear City
Santa Clarita
Long Beach
Los Angeles
Pasadena
Anaheim
San Bernardino
50
30
26
42
43
32
10
10
29
3
41
Laguna Reservation
Cahuilla Band ofMission Indians
Iipay Nation ofSanta Ysabel
Capitan Grande Band of Diegueno Mission Indians
Santa RosaBand ofCahuillaIndians
La Jolla Band of Luiseno Indians
Sycuan Band of the Kumeyaay Nation
Ramona Band of Cahuilla
Inaja Band ofDieguenoMission IndiansMesa Grande Band of Diegueno Mission Indians
Morongo Band ofMission Indians
Pechanga Band ofLuiseno Mission Indians
Barona Group of Capitan Grande Band of Mission Indians
Jamul IndianVillage
San Manual Band ofMission Indians
Soboba Band ofLuiseno Indians
Manzanita Band of Diegueno Mission Indians
Campo Band of Diegueno Mission Indians
Pala Band of Luiseno Mission Indians
Rincon Band of Luiseno Mission Indians
San Pasqual Band of Diegueno Mission Indians
Los Coyotes Band of Cahuillaand Cupeno Indians
Viejas (Baron Long) Group of Capitan Grande Band of Mission IndiaViejas (Baron Long) Group of Capitan Grande Band of Mission India
Iipay Nation ofSanta Ysabel
La Posta Band of Diegueno Mission Indians
Pauma Band of Luiseno Mission Indiansof the Pauma & Yuima Reserv
Inaja Band ofDieguenoMission Indians
Ewiiaapaayp Band of Kumeyaay Indians
Los Coyotes Band of Cahuillaand Cupeno Indians
San Manual Band ofMission Indians
Viejas (Baron Long) Group of Capitan Grande Band of Mission India
IRWM Regions
3 Anza Borrego Desert 10 Greater Los Angeles County 26 San Diego 29 Santa Ana Watershed Project
Authority 30 Santa Barbara County 32 South Orange County WMA 41 Upper Santa Clara River 42 Upper Santa Margarita 43 Watersheds Coalition of
Ventura County
Los Angeles, Santa Anna, & San Diego Funding Areas
Tribal LandsTribal Reservation Boundaries [1](124 records total - labeled)
Tribal Trust Land Boundaries (tracts) [1](5,305 records total - not labeled)
Historic location of Indian land once held in Trust for a Terminated Tribe and/or the location of a landless federally recognized Tribe. [2](22 records total - labeled)
Tribal Land Notes: Boundaries shown are approximate and have been scaled up to improve visualization at current map scale.1 - Source: U.S Bureau of Indian Affairs (Feb. 2018)2 - Source: DWR acquired legacy data (author unknown). IRWM Region notes:
A) Increased symbol shading is shown where there is an IRWM boundary overlap.
B) Numbers shown are for reference purposes only and correspond to internal DWR Region Acceptance Process (RAP) submittal identifications.
C) Region boundaries shown are those submitted by each Regional Water Management Group (RWMG) to DWR as part of the RAP (or per subsequent, approved revisions).
— RAP 2009 = ID No's 1 - 46 — RAP 2011 = ID No's 47 - 49 — RAP 2016 = ID No. 50E) ID No. 9 (Gateway) has been incorporated into ID No. 10
(Greater Los Angeles County) and is no longer shown.
M E X I C O
San DiegoSub-Region
Santa AnaSub-Region
Los AngelesSub-Region
Integrated Regional Water ManagementLos Angeles, Santa Ana, & San Diego Funding Areas | IRWM Regions | California Tribal Lands
0 10 20 30 405Miles
May 2020
