TREKKR.LIFE
Trail Journal No. 066 · Sonora Pass & Ebbetts Pass · California
A field guide for planning — not a substitute for current maps, posted signs, U.S. Forest Service, state-park and Caltrans regulations, or personal judgment. California State Route 108 over Sonora Pass and State Route 4 over Ebbetts Pass are seasonal, gated mountain highways closed across the Sierra crest for roughly half of each year, reopening on a weather-dependent schedule that varies by more than a month between years; no future road status is asserted here. The 2026-season dates given — State Route 108 reopening at 10 a.m. on 30 April 2026 following a winter closure begun 26 December 2025 at the Sno-Park just north of Strawberry with approximately 28 miles cleared to the summit, and reopening again at Kennedy Meadows at noon on 7 May 2026 after a storm; State Route 4 reopening at 1 p.m. on 6 May 2026 and again at 2.30 p.m. on 29 May 2026 after a further storm closure; and State Route 89 over Monitor Pass reopening at noon on 5 March 2026 with repeated storm closures and reopenings through April and May — are reported by Caltrans District 10 for that season only and must not be read as a prediction for any other year; for scale, State Route 108 opened on 9 June in 2023 after a 211-day closure. Readers must confirm current status with Caltrans before travel, and should be aware that static Caltrans road-information pages and U.S. Forest Service area-status fields are frequently stale. Caltrans has awarded a contract of approximately $36.4 million to rehabilitate approximately 31.7 miles of State Route 4 in Alpine County from the State Route 89 junction west through Bear Valley toward the Calaveras County line, with work beginning in early August 2026 and scheduled completion in November 2030, requiring one-way traffic control and periodic full highway closures that will be posted in advance; because there is no practical alternate route, readers must check Caltrans District 10 for scheduled closures before travelling this corridor in any year through 2030. Sonora Pass is approximately 9,624 feet and is described by Caltrans as the second-highest point on the state highway system, after Tioga Pass; Ebbetts Pass is approximately 8,730 feet, given as 8,736 feet under the NAVD 88 datum; Pacific Grade Summit is approximately 8,050 feet and Monitor Pass approximately 8,314 feet. Grades on State Route 108 exceed 8 percent for most of the traverse, and Caltrans posts a warning sign reading 26 percent grade to westbound traffic leaving U.S. 395; a reported 24 percent grade descends from Pacific Grade Summit on State Route 4. Both grade figures are posted or widely reported rather than drawn from a Caltrans engineering table, and are flagged as such in the "What we could not confirm" section. Caltrans lists State Route 108 from the Tuolumne and Mono county line at Sonora Pass to approximately five miles west of the U.S. 395 junction as prohibiting trucks with a kingpin-to-rear-axle measurement over 38 feet, with the route otherwise designated Advisory 30, and describes the route as not recommended for vehicles or vehicle combinations that are unusually wide, heavy or long; kingpin-to-rear-axle is a tractor-trailer measurement that does not apply to motorhomes or travel trailers, and any statement that vehicles over 38 feet in overall length are prohibited is incorrect. State Route 4 does not appear on the Caltrans special-route-restriction list and carries no legal vehicle-length limit; the 25-foot figure associated with that route is advisory signage only, and this negative finding must not be read as an indication that long vehicles are suitable. Approximately 23 miles of State Route 4 between Lake Alpine and Centerville Flat are less than two lanes wide with no dividing line and no shoulders, and the route is described as not accessible to tractor-trailers, buses or large recreational vehicles. Both descents are long and sustained, there are no runaway-vehicle ramps on either pass, and drivers should descend in low gear rather than on continuous brake pressure. Satellite-navigation routing does not account for these restrictions; in July 2026 a semi-trailer following GPS directions closed State Route 108 after becoming stuck near the Leavitt Falls vista point. The Stanislaus National Forest implemented temporary fire restrictions effective 17 July 2026 through 31 December 2026 under Forest Orders STF-16-2026-11 and STF-16-2026-12, prohibiting building, maintaining, attending or using a fire, campfire or stove fire except within developed recreation sites specifically listed in the orders, restricting smoking, prohibiting welding, open torches and the discharge of firearms, and requiring properly maintained spark-arresting devices, with penalties up to $5,000 for an individual and up to six months imprisonment; the Humboldt-Toiyabe National Forest Carson and Bridgeport ranger districts entered Stage 1 fire restrictions on 29 June 2026, in effect until rescinded. Holders of a valid California Campfire Permit may use portable stoves and lanterns burning gas, jellied petroleum or pressurised liquid fuel and require such a permit for any stove used outside a developed campground, but are not exempt from the campfire prohibition. Fire orders change through the season and no fire status is asserted here. A wilderness permit is required for all overnight trips into the Carson-Iceberg Wilderness, is free with no quota and self-issued at trailheads and at the Calaveras and Summit ranger stations, is not required from 30 November to 15 April, limits groups to 15 people and 25 head of stock, and cannot be self-issued for trips travelling outside the Stanislaus National Forest boundary; the neighbouring Emigrant Wilderness operates a separate quota system. Forest Service dispersed-camping guidance gives a limit of 21 cumulative days per ranger district per calendar year and requires camping at least 100 feet from meadows, lakes and streams, while the maximum stay within a developed campground is 14 days; many forest roads close from 15 December to 15 April. The Dardanelle Resort, including its gas station, store, restaurant, bar and cabins, was destroyed by the 2018 Donnell Fire, which burned 36,450 acres and 135 structures and was attributed to an unattended illegal campfire; the resort's 2026 trading status could not be confirmed and no fuel or services at Dardanelle are assumed in this guide. Alpine County's Turtle Rock Park campground and the Bureau of Land Management's Indian Creek campground are reported closed following the 2021 Tamarack Fire and, in the latter case, subsequent flooding, and are listed here as closed. The status of the hot-spring pool complex at Grover Hot Springs State Park was contradicted within a single California State Parks page at press and neither status is asserted here. The 2018 Donnell Fire and the 2021 Tamarack Fire, which burned 68,637 acres, left extensive standing dead timber along these corridors; falling trees are a genuine hazard in wind and burn scars shed water rapidly, producing flash flooding and debris flows in downstream drainages during thunderstorms. Most thunderstorm activity builds after noon and both summits and both Pacific Crest Trail crossings sit on exposed, largely treeless crest with little shelter. This is black-bear country with no grizzlies. Cell coverage is poor to absent along both corridors and effectively absent between Bear Valley and Markleeville; download offline maps, permits and reservations before travel. Because this is national-forest land with no single authoritative table of fees, seasons, elevations and trail distances, many such figures in this guide are reported rather than confirmed, and each is flagged in the "What we could not confirm" section, which readers should treat as part of the guide, not an afterthought; no fee, date, distance, campground, business or coordinate is invented anywhere in this guide, and coordinates in the paired datasets are OpenStreetMap-sourced only. The Death Ride closes Monitor Pass, Ebbetts Pass and Pacific Grade to motor vehicles for most of one Saturday each July; the date moves annually. Yosemite and Tioga Pass, Lake Tahoe and the Northern Sierra, and the U.S. 395 corridor lie outside this guide's scope and are covered in separate issues. Conditions noted were verified 25 July 2026 and will go stale — the live sources listed are the truth on the day you travel. The images in this issue are ultrarealistic photographs representative of the region's terrain, not documentary photographs of the exact named places. Verify all conditions, fees, permits, reservations, road status and services before travel. © Trekkr Life.
