Here I share photos of many of the mountains I have visited, organized by geographic region:
Oregon Peaks

Pearsoll Peak from the Kalmiopsis Rim Trailhead
Pearsoll Peak from the Kalmiopsis Rim Trailhead, Siskiyou Mountains, Oregon (2017-06-22)

Three Fingered Jack from the PCNST
Three Fingered Jack from the PCNST, Mount Jefferson Wilderness, Cascade Range, Oregon (1980-09-06)

Saddle Mountain, Northern Oregon Coast Range
Saddle Mountain, Coast Range, Clatsop County, Oregon (2017-07-19)

High Cascades to the north from South Sister
High Cascades to the north from South Sister, Three Sisters Wilderness, Cascade Range, Oregon (2017-10-04)

Angell Peak, Gunsight Mountain, and Van Patten Butte from Twin Mountain
Angell Peak, Gunsight Mountain, and Van Patten Butte from Twin Mountain, Elkhorn Mountains, Oregon (2020-07-25)

The Coe Glacier and the North Face of Mount Hood
The Coe Glacier and the North Face of Mount Hood from the Timberline Trail, Cascade Range, Oregon (1976-09-20)

The High Cascades to the north from the east ridge of Mount Bachelor
The High Cascades to the north from the east ridge of Mount Bachelor, Cascade Range, Oregon (2023-10-20)

Looking down at "The Crawl" from higher on the South Ridge of Three Fingered Jack
Looking down at "The Crawl" from higher on the South Ridge of Three Fingered Jack, Mount Jefferson Wilderness, Cascade Range, Oregon (2004-08-27)

South summit pinnacle of Mount Jefferson
South summit pinnacle of Mount Jefferson, Mount Jefferson Wilderness, Cascade Range, Oregon (2004-07-17)

Middle Sister from the northwest
Middle Sister from the northwest, Cascade Range, Oregon (1979-08-04)

Summit Pinnacle of Broken Top from NW Ridge
Summit Pinnacle of Broken Top from NW Ridge, Three Sisters Wilderness, Cascade Range, Oregon (1991-03-30)

Mount Washington from near Belknap Crater
Mount Washington from near Belknap Crater, Mount Washington Wilderness, Cascade Range, Oregon (2018-09-01)

The East Face of Mount Hood from Gnarl Ridge
The East Face of Mount Hood from Gnarl Ridge, Cascade Range, Oregon (1976-09-20)

View down Leuthold Couloir, Mount Hood
View down Leuthold Couloir, Mount Hood, Cascade Range, Oregon (1981-07-03)

Tidbits Mountain summit, Willamette National Forest
Tidbits Mountain summit viewed from below the Tidbits Mountain Lookout site, Cascade Range, Willamette National Forest, Oregon (2022-10-06)

The Hogsback and Pearly Gates lead to the summit of Mount Hood
The Hogsback and Pearly Gates lead to the summit of Mount Hood, Mount Hood Wilderness, Cascade Range, Oregon (2004-12-23)

Sunset on the summit of Cottonwood Mountain
Sunset on the summit of Cottonwood Mountain, Malheur County, Oregon (2022-08-04)

Mount Jefferson from Woodpecker Ridge
Mount Jefferson from the Pacific Crest Trail and Woodpecker Ridge, Mount Jefferson Wilderness, Oregon (2022-10-02)

North face of Rock Creek Butte
North face of Rock Creek Butte, Elkhorn Mountains, Oregon (2019-08-23)

The summit of North Sister from Collier Glacier
The summit of North Sister from Collier Glacier, Cascade Range, Oregon (1979-08-05)

North Ridge of Ruby Peak above the Old Murray Saddle Trail
The North Ridge of Ruby Peak rises steeply above the Old Murray Saddle Trail, Wallowa Mountains, Wallowa County, Oregon (2023-08-16)

Broken Top from below its south summit
Broken Top from below its south summit, Three Sisters Wilderness, Cascade Range, Oregon (2019-08-04)

Summit Point from Chloride Ridge West Peak
Summit Point from Chloride Ridge West Peak, Elkhorn Mountains, Oregon (2024-10-06)

Mickey Butte from Mickey Hot Springs
Mickey Butte from Mickey Hot Springs, Harney County, Oregon (2019-09-22)

Matterhorn from Sacajawea Peak
Matterhorn from Sacajawea Peak, Eagle Cap Wilderness, Wallowa Mountains, Oregon (1989-07-04)

Linda following on the Broken Top Summit Pinnacle
Linda following on the Broken Top Summit Pinnacle, Three Sisters Wilderness, Cascade Range, Oregon (1991-03-30)

Three Fingered Jack Summit Pinnacle from the South Ridge
Three Fingered Jack Summit Pinnacle from the South Ridge, Mount Jefferson Wilderness, Cascade Range, Oregon (2004-08-27)

The West Face of Mount Hood from Zigzag Canyon
The West Face of Mount Hood from Zigzag Canyon, Cascade Range, Oregon (1976-09-18)

Approaching Crater Rock and the Devils Kitchen on the South Side of Mount Hood
Approaching Crater Rock and the Devils Kitchen on the South Side of Mount Hood, Mount Hood Wilderness, Cascade Range, Oregon (2004-12-23)

Mount Jefferson from the Whitewater Trail
Mount Jefferson from the Whitewater Trail, Mount Jefferson Wilderness, Cascade Range, Oregon (1978-07-08)

The Red Saddle Traverse below the summit pinnacle of Mount Jefferson
The Red Saddle Traverse below the summit pinnacle of Mount Jefferson, Mount Jefferson Wilderness, Cascade Range, Oregon (2004-07-17)

Bergschrund bergschrund on Jefferson Park Glacier, Mount Jefferson
Bergschrund on Jefferson Park Glacier, Mount Jefferson, Mount Jefferson Wilderness, Cascade Range, Oregon (1982-08-21)

Three Sisters and Broken Top from Mount Bachelor
Three Sisters and Broken Top from Mount Bachelor, Cascade Range, Oregon (2018-06-03)

Twin Peaks, Eagle Cap Wilderness
Twin Peaks, Eagle Cap Wilderness, Wallowa Mountains, Oregon (2016-09-17)

Mount Thielsen from the Southwest
Mount Thielsen from the Southwest, Mount Thielsen Wilderness, Cascade Range, Oregon (1991-02-09)

Strawberry Mountain from the Onion Creek Trail
Strawberry Mountain from the Onion Creek Trail, Strawberry Mountain Wilderness, Strawberry Range, Oregon (2008-10-18)

Antone Creek in the Elkhorn Mountains
Antone Creek, Elkhorn Mountains, Baker County, Oregon (2019-07-03)

Mount Hood from Cloud Cap Campground
Mount Hood from Cloud Cap Campground, Cascade Range, Oregon (1978-07-22)

Lewis Glacier and South Ridge of South Sister
Lewis Glacier and South Ridge of South Sister, Three Sisters Wilderness, Cascade Range, Oregon (2018-09-04)

Mount Hood to the West from Lookout Mountain
Mount Hood to the West from Lookout Mountain, Hood River County, Oregon (2016-08-16)

Chloride Ridge East Peak from Killamacue Lake
Chloride Ridge East Peak from Killamacue Lake, Elkhorn Mountains, Oregon (2024-09-13)

Abert Rim and Lake Abert
Abert Rim and Lake Abert, Fremont-Winema National Forest, Lake County, Oregon (2019-10-14)

Black Canyon Peak (Peak 4920) above the Snake River
Black Canyon Peak (Peak 4920) above the Snake River, Baker County, Oregon (2016-09-18)

East Face of Three Fingered Jack from Canyon Creek Meadows
East Face of Three Fingered Jack from Canyon Creek Meadows, Cascade Range, Oregon (1988-07-17)

Teardrop Pool below the summit of South Sister
Teardrop Pool below the summit of South Sister, Three Sisters Wilderness, Cascade Range, Oregon (2009-08-09)

Mount McLoughlin from the Southeast Ridge
Mount McLoughlin from the Southeast Ridge, Cascade Range, Oregon (1980-08-31)

Van Patten Butte from the Elkhorn Crest Trail
Van Patten Butte from the Elkhorn Crest Trail, Elkhorn Mountains, Oregon (2019-10-04)

Wizard Island, Crater Lake National Park
Wizard Island from Watchman Overlook, Crater Lake National Park, Oregon (2019-09-12)

South Sister from The Husband
South Sister from The Husband, Three Sisters Wilderness, Cascade Range, Oregon (1979-09-11)

Eagle Cap from Mirror Lake
Eagle Cap from Mirror Lake, Eagle Cap Wilderness, Wallowa Mountains, Oregon (1989-07-05)

Traverse to Sacajawea Peak from Matterhorn
Traverse to Sacajawea Peak from Matterhorn, Eagle Cap Wilderness, Wallowa Mountains, Oregon (1989-07-04)

Lightning strike spray on Mount Jefferson summit
Lightning strike spray on Mount Jefferson summit, Mount Jefferson Wilderness, Cascade Range, Oregon (1988-07-24)

West Fork Lostine Valley and Eagle Cap from Elkhorn Peak
West Fork Lostine Valley and Eagle Cap from Elkhorn Peak, Wallowa Mountains, Wallowa County, Oregon (2017-09-16)

Rock Creek Butte and the Southern Elkhorn Mountains
Rock Creek Butte and the Southern Elkhorn Mountains, Oregon, (2021-09-29)

Hogsback bergschrund below Mount Hood's Pearly Gates
Hogsback bergschrund below Mount Hood's Pearly Gates, Mount Hood Wilderness, Cascade Range, Oregon (2004-12-23)

Rock Creek Butte from Elkhorn Peak
Rock Creek Butte from Elkhorn Peak, Elkhorn Mountains, Oregon (2008-08-24)

Near the top of the Sandy Glacier Headwall, Mount Hood
Near the top of the Sandy Glacier Headwall, Mount Hood, Cascade Range, Oregon (1988-05-21)

Upper Jefferson Park Glacier, Mount Jefferson
Upper Jefferson Park Glacier, Mount Jefferson, Mount Jefferson Wilderness, Cascade Range, Oregon (1981-08-08)

Chloride Ridge West Peak above Mayflower Meadow
Chloride Ridge West Peak above Mayflower Meadow, Elkhorn Mountains, Oregon (2024-10-08)

South Sister from Husband Lake
South Sister from Husband Lake, Three Sisters Wilderness, Cascade Range, Oregon (1979-09-11)

Northwest Ridge of Broken Top
Northwest Ridge of Broken Top, Cascade Range, Deschutes County, Oregon (2020-09-30)

Three Fingered Jack from above "The Crawl" on the South Ridge
Three Fingered Jack from above "The Crawl" on the South Ridge, Mount Jefferson Wilderness, Cascade Range, Oregon (2004-08-27)

Twin Peaks, Eagle Cap Wilderness
Twin Peaks, Eagle Cap Wilderness, Wallowa Mountains, Oregon (2016-09-17)

Lake Owyhee and Leslie Gulch from Mahogany Mountain
Lake Owyhee and Leslie Gulch from Mahogany Mountain, Malheur County, Oregon (2016-06-11)

South Sister from the Climbers Trail
South Sister from the Climbers Trail, Three Sisters Wilderness, Cascade Range, Oregon (2017-10-04)

South Sister from Moraine Lake
South Sister from Moraine Lake, Three Sisters Wilderness, Cascade Range, Oregon (1979-09-12)

The Upper South Side of Mount Hood
The Upper South Side of Mount Hood, Mount Hood Wilderness, Cascade Range, Oregon (2004-12-23)