Highway Landmarks MileMarkers
Note: milemarkers are in ascending mileage from the south or west county line, or beginning of the highway.
MM	Description	Other	Town
SR 299
Humboldt County
Hum 0.10	Crossing of US 101	at interchange of 299/101	Arcata
Hum 1.55	Mad River Bridge		w/of Blue Lake
??	Lord Ellis Summit
Hum 7.38	CHP Scales	north side of roadway	Blue Lake
Hum 22.33	Redwood Creek Bridge	bottom of canyon, border between CHPs Humboldt (#16) and Trinity River (#90) areas
??	Berry Summit	Horse Mountain turn-off
Hum 38.33	Jct Hwy 96	WILLOW CREEK	Willow Creek
Hum 43.04	Trinity County Line	South Fork Trinity River Bridge:       End of "Hum" milemarkers
SR 299 - Trinity County
Tri 0.00	Humboldt/Trinity County Line	South Fork Trinity River Bridge
Tri 3.75 ?	Salyer Rest Area		Salyer
Tri 13.87	Trinity River Bridge	USFS Restrooms on e/side of bridge
?
36.50?		JUNCTION CITY
?	Oregon Mtn Summit		w/of Weaverville
?		WEAVERVILLE	Weaverville
Tri 51.57	Jct Hwy 3 (north) to Yreka		Weaverville
?	Weaverville Rest Area		w/of Douglas City
Tri 58.18	Jct Hwy 3 (south) to Hayfork		Douglas City