GMU 503 - Randle, Washington

Low-elevation floodplain agricultural and residential land along the Cowlitz and Cispus rivers transitions to forested hills and USFS lands at higher elevations. Steep topography dominates the eastern portion near Gifford Pinchot NF. The unit sits at the western edge of the Mount St. Helens blast-zone influence zone, with second-growth Douglas-fir and western red cedar regenerating across post-1980 harvest and disturbed areas. Elevation ranges from roughly 500 ft along the river bottoms to over 3,000 ft on the upper USFS ground. Clearcuts in various stages of regrowth provide concentrated browse and forage for both deer and elk.

Primary access via State Route 12 through Randle and USFS Road 25 heading southeast toward the Mount St. Helens National Volcanic Monument boundary. The Kiona Creek and Kosmos units of the Cowlitz Wildlife Area (~750 acres) on the east end of Riffe Lake are open public-access WDFW land. Gifford Pinchot NF lands in the southeast quadrant are open for public hunting. Industrial forestlands (~50% of unit) are held by companies including Manulife/Hancock Forest Management, Port Blakely, Sierra Pacific, and smaller private owners — most allow walk-in day-use access without a fee, though motorized access may be restricted Aug-Oct during fire danger. The Cowlitz Valley Ranger Station in Randle is the primary contact for USFS road conditions (360-497-1103). Forest roads are typically open late June through November.

Dominant cover is second-growth Douglas-fir, western red cedar, and big-leaf maple at lower elevations, transitioning to Pacific silver fir and mountain hemlock on upper USFS ground. Active and recent clearcuts provide the primary deer and elk feeding habitat — huckleberries, blackberries, and cascara are key late-summer and fall food sources for both ungulates and black bears. Riparian corridors along the Cowlitz and Cispus rivers offer dense alder, cottonwood, and willow cover. The unit does not include designated Wilderness; the Mount St. Helens National Volcanic Monument boundary lies immediately to the east/southeast of the unit's USFS lands, and Monument regulations (no wheeled devices, non-motorized only, camping in designated areas) apply within the Monument but not within GMU 503 proper.

Elk and deer follow classic elevation-migration patterns: summer range on upper USFS and DNR lands, dropping to lower agricultural edges and river-bottom cover by late October through rifle season. The Cowlitz and Cispus river corridors serve as travel routes between summer and winter ranges. Elk belonging to the Mount St. Helens herd move through this unit seasonally; the broader MSH herd is estimated at approximately 1,250 adult females as of spring 2024 surveys — below management objectives but trending slightly upward from the ~1,000 low recorded 2017-2022. Treponeme-Associated Hoof Disease (TAHD) is prevalent among District 10 elk; hunters should be alert to limping animals and are encouraged to participate in WDFW's TAHD incentive program by submitting hooves at collection sites.

Small unit (56 sq mi) with substantial private land makes access the primary challenge. General elk tags are available OTC; no limited-entry requirement for standard modern firearm, archery, or muzzleloader seasons in GMU 503. Special permit-only elk hunts exist in adjacent Mt. St. Helens area (Mudflow Elk Area 5099, Pumice Plain, Mt. Whittier, Norway Pass, Upper Smith Creek) — these are strenuous backcountry hunts in roadless Monument terrain requiring non-motorized harvest removal. Deer are any-buck general tag. Black bear falls under the Mount St. Helens Black Bear Management Unit (BBMU) with a season of Aug 1 through Nov 15 and a statewide 2-bear bag limit. Cougar season runs Sept 1-March 31 or until harvest cap is met in the applicable Cougar Hunt Management Unit; check the WDFW Cougar Hotline (866-364-4868) weekly for closure status. TAHD (hoof disease) is a known concern in District 10 elk — affects hooves only, meat is safe to consume with normal hygiene.