Yacht Racing Association of San Francisco Bay

YRA Description of Marks

Below are the descriptions of marks used in YRA races.  Also included are the APPROXIMATE GPS coordinates for the permanent marks. These GPS coordinates are provided as a reference; the YRA makes no guarantee as to the accuracy of these GPS coordinates. We encourage you to sail by each mark and enter in your GPS to ensure accuracy.

Ocean

Click here for ocean chartlet with marks.

Mark APPROX Lat/Long Description
3 37 42.11 / 123 00.03 Farallones Light
NO 37 48.00 / 122 47.90 North Approach Buoy to San Francisco Channel [Fl Y 4s]
SO 37 39.00 / 122 41.71 South Approach Buoy to San Francisco Channel [Fl Y 4s]
PB 37 48.70 / 122 32.40 Point Bonita [RG Fl(2+1) R 6s bell]
SF 37 45.00 / 122 41.50 Center Channel buoy of San Francisco Channel “SF” [RW strobe Fl 2.5s whistle]

Central & North Bay

Click here for Central Bay chartlet with marks, click here for North Bay chartlet with marks.

Mark APPROX Lat/Long Description
FOC 37 51.85 / 122 22.62 Olympic Circle buoy F
GOC 37 52.62 / 122 22.73 Olympic Circle buoy G
XOC 37 52.34 / 122 21.51 Olympic Circle buoy X (center of the circle) – Bobbi Tossi
A 37 48.45 / 122 27.09 Yellow sphere A outer buoy St. Francis Yacht Club
D 37 51.47 / 122 20.90 R “3” [Fl G 4s 15 ft]
K Temp buoy 0.3 nm west of YRA 4 in line with YRA 12
N 37 51.35 / 122 28.11 Daymark 2 on channel east of Sausalito [Fl R]
L Temp buoy 0.31 nm west of Windmill in line with YRA 4
X 37 48.61 / 122 26.63 Yellow/blue sphere X Golden Gate Yacht Club
1 37.55.75 / 122.25.86 Red Rock Island
2 37 49.56 / 122 25.33 Alcatraz Island
4 37 51.17 / 122 26.61 Lighted red nun buoy near Pt Knox
5 Temp buoy approx. 0.6 nm southwest of Alcatraz
6 37 48.68 / 122 25.87 Lighted yellow column M approx. 0.1 nm north of Ft Mason docks (Phil Perkins)
7 37 49.92 / 122.23.88 Approx. 1 nm northwest of Treasure Island [R “2” Fl 6s]
8 37 50.83 / 122 23.78 Approx. 1 nm east of Point Blunt [R “4” Fl R 2.5s]
9 Temp buoy approx. 0.5 nm east-southeast of west end Berkeley Pier ruins/approx 1 nm east-northeast of YRA 10
10 Temp buoy approx. 0.6 nm west-southwest of west end Berkeley Pier ruins
11 Temp buoy approx. 1.5 nm east of Treasure Island
12 37 50.63 / 122 27.20 Little Harding Rock [G “1” Fl G4s]
13 37 48.45 / 122 27.64 Crissy Field
14 37 52.93 / 122 24.01 Southampton Shoals [R 6s 32ft 6M bell]
15 37 50.36 / 122 27.99 Large lighted yellow column buoy approx. 0.5 nm east of Yellow Bluff – Hank Easom
16 37 48.603 / 122 27.982 Lighted yellow column approx. 0.2 nm east of Ft Point – Tom Blackaller
17 37 50.28 / 122 26.76 Harding Rock “HR” [RG  Fl (2+1) R6s]
18 37 49.10 / 122 24.12 Blossom Rock “BR”  [GR Fl (2+1) G 6s bell]
19 37 52.78 / 122 24.90 “8” approx. 1.5 nm east of Pt Bluff [R Fl R2.5s]
21 37 50.00 / 122 24.33 “1” approx. 0.65 nm northeast of Alcatraz [G Fl 6s]
23 37 51.83 / 122 24.53 RW “A” Mo (A) east of Angel Island
24 37 51.65 / 122 23.79 “6” approx. 1.1 nm east of Quarry Pt [G Fl R 4s bell]
CM2 37 55.70 / 122 28.22 Outer end of Corte Madera Channel [R “2” Fl R 6s]
NBAY Temp buoy approx. 0.6 nm northeast of Tiburon Clubhouse
NG7 37 55.20 / 122 25.38 “7” approx. 0.45 nm southeast of Red Rock [G Fl 2.5s]
NR6 37 54.98 / 122 25.34 “6” approx. 1.2 nm southeast of Red Rock [R Fl 2.5s (lighted)]
NR12 37 54.50 / 122 26.46 “12” approx. 1.3 nm south of Richmond-San Rafael Bridge main channel [R Fl 4s]
NR14 37 55.50 / 122 26.36 6 “14” approx. 0.3 nm south of Richmond-San Rafael Bridge main channel [R Fl 4s]
TYC 37 54.57 / 122 28.20 Privately maintained white mark “TYC” off entrance to Paradise Cove Harbor

 

South Bay

Click here for South Bay chartlet with marks.

Mark APPROX Lat/Long Description
AS1 37 46.31 / 122 22.94 Yellow sphere approx. 0.25 nm east of BVYC
NAS2 37 46.22 / 122 20.24 NAS Alameda Channel “R2” [R Fl 4s]
SC1 37 46.54 / 122 21.95 “SC” approx. 1 nm east-northeast of Mission Rock Terminal [RG Fl G(2+1)]
W1 Temp buoy approx. 1 nm east of Army St Terminal
SX1 Temp buoy approx. halfway between YRA 31 & AS1
31 Temp buoy approx. 1.2 nm southeast of Mission Rock Terminal
32 37 44.76 / 122 19.40 “A” approx 2.5 nm east of Army St Terminal [Fl Y 4s]
33 37 48.07 / 122 20.73 “4” Oakland Inner Harbor Entrance Channel [R FL R 4s]
34 37 45.50 / 122 22.02 “2” approx. 0.5 nm east of Portrero Point [R Fl R 2s]
35 37 46.57 / 122 19.82 Daymark “3” Alameda NAS Entrance Channel [G Fl G2.5s]
36 37 46.43 / 122 19.44 Daymark “4” Alameda NAS Entrance Channel [R Fl R4s]
37 37 44.38 / 122 21.58 “5” approx. 1 nm south-southeast of Army St. Terminal [G Fl G4s]