Oregon Caves

Beautiful show caves that were discovered in 1874. Caves have formed in marble and through the cave system flows a river – River Styx. The total length of passages is around 4,600 m. The cave contains valuable fossils including remnants of a grizzly bear, jaguar, and others.

Sea Lion Caves

A system of enormous sea caves with up to 38 m tall ceilings. Here lives a group of Steller’s sea lions – during the winter there are hundreds of them. Discovered in 1880.

Borax Lake

A thermal lake that is fed by hot springs. The temperature of the lake surface is between 16 and 38 degrees C and also higher. Lake water contains much borax, arsenic, and lead. Nevertheless, here lives a unique fish – Borax Lake chub (Gila boraxobius).

Mickey Hot Springs

Geothermal field with thermal springs and mud pots. The hottest springs are boiling. Here have existed also intermittent springs.

Steel Bridge in Portland

Double decker truss bridge that was constructed in 1912. This bridge has a complex vertical lift that rises the double decker system from 7.6 m above the river to 22 m or 50 m.

Hawthorne Bridge

Historical truss bridge, constructed in 1910. It has a vertical lift that operates up to this day, rising a section of the bridge from 15 m to 48 m above the river. This operation is repeated some 120 times per month.

St. Johns Bridge

A beautiful steel suspension bridge, constructed in 1931. The bridge towers have unusual Neo-Gothic forms. The bridge is 630 m long, the main span is 368 m long.

Pittock Mansion

A prominent private mansion, constructed in 1909 – 1914. This French Rennaisance style chateau has 46 rooms. Around the house are famous gardens with heritage roses. Site of legends about ghosts.

John Jacob Astor Hotel

A historic former hotel building, constructed in Art Deco style in 1922 – 1923. Using the height of the 8th-floor high hotel here was set up the world’s first cable TV system in 1948. It is named after John Jacob Astor who founded Fort Astoria (1811) nearby and later became the richest man in the United States.

Astoria – Megler Bridge

The longest continuous truss bridge in the United States. This 6.55 km long bridge was constructed in 1962-1966 across the Columbia River. The longest span is 376 m.