A granite wall more than 1,300 feet high stands behind the town of Index, WA. With 170 residents (OFM, 2026), it is the smallest incorporated place in Snohomish County in OFM’s table, set on the North Fork of the Skykomish River about a mile northeast of US 2 and 36 miles east of Everett, by HistoryLink’s measure. HistoryLink wrote in 2019 that recreation, from rafting to climbing, had become the town’s economic mainstay.
A town platted for the railroad
The Skykomish Tribe had a village near the townsite for thousands of years and a trade route east over the mountains, HistoryLink writes. The Great Northern Railway’s transcontinental line was finished on January 6, 1893, with tracks curving along the base of the Town Wall. Amos and Persis Gunn, expecting the railroad, filed the town plat, dated April 25, 1893 by HistoryLink, and laid out Index Avenue 100 feet wide in the hope of a spur line to mining camps upriver. The spur never came.
Copper mines, a lumber mill and a granite quarry kept the town busy into the 1920s. The Western Granite Company shipped stone as far as Spokane and Portland, and Index granite became the steps of the Legislative Building in Olympia. When the quarry’s main structure burned in 1932, only its 10-foot circular saw blade survived, and it now sits in the town park. Index incorporated on October 11, 1907, after a vote that month by the town’s 64 eligible voters, all of them men.
Climbing the Town Wall
Part of the cliffs above town is public now. In March 2026 the Washington Climbers Coalition donated 20 acres of the Lower Town Wall to Washington State Parks, which manages it as part of Forks of the Sky State Park. State Parks calls the Lower Town Wall one of Washington’s most popular climbing destinations for more than 60 years. The Washington State Parks Foundation notes a trail to the top of the Upper Town Wall for non-climbers, with views of Mount Index; check State Parks for current access before going.
Forks of the Sky also spreads day-use areas along US 2 outside the town, including Big Eddy, a river beach east of Gold Bar, and Raptor Point and Picnic Bend, with trails to undeveloped riverside spots.
Heybrook Ridge, just across the river
Heybrook Ridge County Park lies just outside the Town of Index, on Index-Galena Road. Residents organized in 2006 when the ridge was slated for clear-cutting, and Snohomish County bought the land in 2008 with a $700,000 Conservation Futures grant and $550,000 raised by the Friends of Heybrook Ridge. The 143-acre park now has two trails: the Leovy Trail, 3.3 miles round trip with 760 feet of gain to views of Bridal Veil Falls and Mount Index, and the Erinswood Trail, a half-mile accessible gravel loop with benches and interpretive signs on Index history, which the county says was completed in September 2026. North and east, Congress designated the 106,577-acre Wild Sky Wilderness in 2008.
Where to stay and what to see
The Bush House Inn, a National Register hotel whose original structure dates to the 1890s, reopened to guests in July 2021 after a renovation, The Everett Herald reported; as of October 2026 its website lists 10 guest rooms, a cottage and a restaurant. The photographer Lee Pickett, who settled in Index in 1910, recorded the town for decades, and HistoryLink notes that his former home serves as the Index-Pickett Museum.
Living here
A plat drawn for the railroad, a granite saw blade in the park, climbers on the wall above the rooftops: Index is small, steep and built around rock and river. Homes here change hands rarely, so if Index, or the US 2 towns downriver such as Gold Bar and Sultan, is on your list, Chase Hedin, Managing Broker, can talk through what living this far up the Skykomish involves. Start a conversation · What’s my home worth?