Albert Hale Sylvester (May 25, 1871 – September 14, 1944) was a pioneer surveyor, explorer, and forest supervisor in the Cascade Range of the U.S. state of Washington.

He was a topographer for the United States Geological Survey (USGS) in the Snoqualmie Ranger District between 1897 and 1907.

His work involved the first detailed surveying and mapping of large portions of the Cascade Range in Washington, over the course of which he gave names to over 1,000 natural features.

In 1944, while leading a party of friends to one of his favorite parts of the mountains, Sylvester was mortally wounded when his horse panicked and lost his footing on a steep and rocky slope.

"[3] During his career the region between Snoqualmie Pass and the North Cascades, where he did most of his work, was frequently updated with new maps showing the results of ongoing USGS and Forest Service surveying and exploring.

His prolific place naming was due in part to Gifford Pinchot, the first Chief of the Forest Service.

During the Pinchot era national forests were relatively new and often largely unmapped and lacking in place names.

In regions like the Wenatchee National Forest there were a large number of unnamed features.

Significant parts of the mountains were essentially unexplored, except by Native Americans and, in some areas, prospectors, who tended to be secretive about their discoveries.

[3] Sylvester described his experience: I didn't contact the habit [place naming] very intensely in the survey [USGS]... Coming into the Forest Service and finding that in fire protection work it was very desirable, even imperative, that the natural features capable of being named should have names as an aid in locating fire and sending in crews to combat them, I began place-naming more diligently.

[4] Sylvester's place names are scattered over much of the central and northern Cascades in Washington.

Examples of patterned place naming include Aurora Creek and Borealis Ridge, Choral and Anthem Creeks ("singing streams"), all in the upper Entiat valley; the three "baking powder creeks", Royal, Crescent, and Schilling Creeks, named for then-popular brands of baking powder; the American poets' peaks Bryant Peak (for William Cullen Bryant), Irving Peak (for Washington Irving), Longfellow Mountain (Henry Wadsworth Longfellow), Poe Mountain (for Edgar Allan Poe), and Whittier Peak (for John Greenleaf Whittier).

Dirtyface Peak was named for its discolored snow banks due to rapid spring melting.

Pass-No-Pass was given its name because, in Sylvester's words, "the pass has neither road nor trail, and is suited only for driving sheep from one range to another".

J. K. McCall, U.S. Army, who was involved in Washington Territory's Indian Wars of 1858 (Sylvester renamed this peak because he felt its earlier name, Huckleberry Mountain, was too common); Phelps Creek and Phelps Ridge for a prospector.

Fred Beckey writes that Sylvester made the "apparent first ascent" of Sahale Peak, "probably the first" ascent of Columbia Peak, and that Snoqualmie Mountain may have been ascended for a railroad survey in 1867 and an earlier USGS survey party may have reached the summit earlier in the 1890s.