Feds Weigh Expansion of San Gabriel Mountains National Monument

The White House is sending a top-level cabinet member who oversees the U.S. Forest Service to the San Gabriel Valley east of Los Angeles to hear public comments on the proposed expansion the San Gabriel Mountains National Monument.

1 minute read

November 6, 2023, 11:00 AM PST

By Clement Lau


Twilight view of San Gabriel Mountains with three tall palm trees in foreground and purpleish sky.

angeldibilio / Adobe Stock

The San Gabriel Mountains National Monument is a National Monument managed by the U.S. Forest Service, which encompasses parts of the Angeles National Forest and the San Bernardino National Forest in California. On October 10, 2014, President Barack Obama used his authority under the Antiquities Act to create the new monument, protecting 346,177 acres of public lands in the San Gabriel Mountains of the Transverse Ranges.

Twin bills from Rep. Judy Chu, (D-Pasadena) and Sen. Alex Padilla, (D-Calif.) introduced in May this year propose adding 109,167 acres of Angeles National Forest land to the 346,179-acre San Gabriel Mountains National Monument. The monument includes 342,177 acres of the Angeles National Forest and 4,002 acres of neighboring San Bernardino National Forest. The bills would also designate more than 30,000 acres of protected wilderness and add 45.5 miles to the National Wild and Scenic Rivers System.

In this article, Steve Scauzillo reports that Homer Wilkes, undersecretary of the U.S. Department of Agriculture for natural resources and environment, will be in the San Gabriel Valley to hear from the public on November 7, 2023 as to whether President Joe Biden should expand the San Gabriel Mountains National Monument. Biden nominated Wilkes as under secretary in 2021 and he was confirmed by the U.S. Senate on February 8, 2022. Wilkes has a history of working on conservation and restoration of public lands. 

Thursday, November 2, 2023 in Los Angeles Daily News

portrait of professional woman

I love the variety of courses, many practical, and all richly illustrated. They have inspired many ideas that I've applied in practice, and in my own teaching. Mary G., Urban Planner

I love the variety of courses, many practical, and all richly illustrated. They have inspired many ideas that I've applied in practice, and in my own teaching.

Mary G., Urban Planner

Cover CM Credits, Earn Certificates, Push Your Career Forward

Logo for Planetizen Federal Action Tracker with black and white image of U.S. Capitol with water ripple overlay.

Planetizen Federal Action Tracker

A weekly monitor of how Trump’s orders and actions are impacting planners and planning in America.

June 11, 2025 - Diana Ionescu

Metrorail train pulling into newly opened subterranean station in Washington, D.C. with crowd on platform taking photos.

Congressman Proposes Bill to Rename DC Metro “Trump Train”

The Make Autorail Great Again Act would withhold federal funding to the system until the Washington Metropolitan Area Transit Authority (WMATA), rebrands as the Washington Metropolitan Authority for Greater Access (WMAGA).

June 2, 2025 - The Hill

Large crowd on street in San Francisco, California during Oktoberfest festival.

The Simple Legislative Tool Transforming Vacant Downtowns

In California, Michigan and Georgia, an easy win is bringing dollars — and delight — back to city centers.

June 2, 2025 - Robbie Silver

"Stage 4" soundstage wall seen through ornate metal gate at Paramount Studios lot in Los Angeles, California.

Demise of Entertainment Industry Mirrors Demise of Housing in LA

Making movies has a lot in common with developing real estate: producers = developers; screenwriters = architects; directors = general contractors. The similarities are more than trivial. Both industries are now hurting in L.A.

June 12 - California Planning & Development Report

Two young women roller skating in a park on a sunny day.

How Public Spaces Exclude Teen Girls

Adolescent girls face unique challenges and concerns when navigating public spaces. We can design cities with their needs in mind.

June 12 - Next City

Ohio State Senate building nwith modern downtown Columbus skyscrapers in background.

Proposed Ohio Budget Preserves Housing Trust Fund

The Senate-approved budget also creates two new programs aimed at encouraging housing construction.

June 12 - Ohio Capital Journal