Arrows were know to be at the following Washington locations. If the intermediate fields had arrows, it is very likely that the beacons between fields also had arrows.
Happy Hunting.

Cheney

Department of Commerce intermediate field, site 31, Portland-Spokane Airway. Seven-tenths mile N. Altitude, 2,335 feet. Irregular shape, 28 acres, 1,950 feet N./S., sandy, level, natural drainage. Directional arrow marked "31 P-S." Pole line and trees to W., trees to SE., beacon tower on hill to W. Beacon, boundary, approach, and obstruction lights. Beacon, 24-inch rotating, with green course lights flashing characteristic "1" (.__). Aviation fuel. No other servicing facilities. The W. and N. sides of field are surrounded by high ground, so that during a W. wind, blowing causes a down drop on the field.

Department of Commerce Intermediate field, site 31. Portland-Spokane Airway. N. side of city, within city limits. Altitude, 2,335 feet Irregular shape, 28 acres, 1,950 feet N/S., sandy, level, natural drainage. Directional arrow marked "31 P-S." Pole line and trees to W., trees to SB., beacon tower on hill to W. Beacon, boundary, approach, and obstruction lights. Beacon, 24-inch rotating, with green course lights flashing characteristic "1" (. ). Aviation fuel. No other servicing facilities. The W. and N. sides of field are surrounded by high ground, so that during a W. wind, blowing causes a down drop on the field. 

Connell

(P-S Site No. 21).—A 24-inch, 2,000.000-candlepower rotating beacon, showing 6 rotations per minute, elevation of main beam above horizon 1 ½ °, is in operation 10 miles southwest of Connell. Concrete directional arrow at base of tower has forward bearing N. 9° W., backward bearing S. 13° W.

Department of Commerce intermediate field, site 22, Portland-Spokane Airway. One-fourth mile S. Altitude, 870 feet. L shape, 52 acres, sod, level, natural drainage; two landing strips, 2,428 by 550 feet and 2,165 by 660 feet. Directional arrow marked "22 P-S." Pole line to E., pole line 200 feet to N. and NW. Beacon, boundary, approach, and obstruction lights. Beacon, 24 inch rotating, with green course lights flashing characteristic "2" (.._). Aviation fuel. No other servicing facilities.

Department of Commerce intermediate field, site 22, Portland-Spokane Airway. One-fourth mile S. Altitude, 870 feet. L shape, 52 acres, sod, level, natural drainage; two landing strips, 2,350 by 500 feet B./W. and 2,196 by 660 feet N./S. Directional arrow marked "22 P-S." Pole line to B., pole line 200 feet to N. and NW. Beacon, boundary, approach, and obstruction lights. Beacon, 24-inch rotating, with green course lights flashing characteristic "2" (. .—). Aviation fuel. No other servicing facilities. 

The Grand Dalles

Department of Commerce intermediate field, site 7A. Portland-Spokane Airway. One and one-fourth miles E. Altitude, 200 feet. Irregular shape, 88 acres, 2,700 by 1,600 feet, sod, level, natural drainage. Directional arrow marked "7 P-S." Power line to S. Beacon, boundary, approach, and obstruction lights. Beacon, 24-inch rotating, with green course lights flashing characteristic "7" ( . .). Aviation fuel. No other servicing facilities. Teletype. 

(P-S Site No. 7-A).—A 7,500 candlepower 360° flashing white code beacon light is in operation at the intermediate landing field located 1½ miles north of The Dalles, latitude 45° 37' 30": longitude 121° 10': altitude 210 feet. Beacon code is: Dash, dot, dot (_ _ .). An illuminated wind cone is mounted on the beacon tower which is located in the northeast corner of the field. The directional arrow at the base of the tower has bearings: Forward N. 57" E.; backward N. 83* W. A 50-foot circle marks the field. Green approach lights indicate the east and west runway which Is 2.785 by 1.002" feet. The whole field is available for landing. Gradient, level: drainage, good; soil, sandy. Metal cones painted chrome yellow mounted on standards outline the field for day marking: white lights mark the boundaries at night. This field is regular in shape and there are no obstructions except the beacon tower.

Department of Commerce Intermediate field, site 7A, Port-land-Spokane Airway. One and one-fourth miles E. Altitude, 200 feet. Irregular shape, 88 acres, 2,700 by 1,600 feet, sod, level, natural drainage. Directional arrow marked "7 P-S." Power line to S. Beacon, boundary, approach, and obstruction lights. Beacon, green flashing characteristic "7" (_..). Aviation fuel. No other servicing facilities. Teletypewriter. Department of Commerce marker beacon, characteristic signal "D" (—. .), operating frequencies 248 and 278 kc. and radio range beacon, identifying signal " D "(_..), operating frequency 248 kc. 

Kelso

Department of Commerce intermediate field, site 61A, San Francisco-Seattle Airway. One mile S. Altitude, 26 feet. Triangular, 75 acres, 2,404 by 1,987 by 1,770 feet; sod, level, natural drainage. Directional arrow marked "61A SF-S." KELSO on hangar roof. Pole lines to W. and S., trees and buildings to N, trees to NE. Beacon, boundary, approach, and obstruction lights. Beacon, 24-inch rotating, with green course lights flashing characteristic "1" (. _—). Small hangar and aviation fuel. No other servicing facilities. 

Department of Commerce Intermediate field, site 61A, San Francisco-Seattle Airway. One mile S. Altitude, 26 feet. Triangular, 50 acres, 2.404 by 1,987 by 1.770 feet, sod, level, natural drainage; three landing strips, 1,650 feet N./S., 2.200 feet NW./SE., 1,850 feet E./W. Directional arrow marked "61A, SF-S." Pole lines to W. and S., trees and buildings to N.,- trees to NE. Beacon, boundary, approach, and obstruction lights. Beacon, green, flashing characteristic "1" (. __). Small hangar and aviation fuel. No other servicing facilities. 

Lind

Department of Commerce intermediate field, site 25, Portland-Spokane Airway. One mile B. Altitude, 1,361 feet. Irregular shape, 60 acres, 2,025 by 1,761 feet, sod, level, natural drainage. Directional arrow marked "25 P-S." Pole line to S. and SW., beacon tower to SW. Beacon and boundary lights. Beacon, 24-inch rotating, with green course lights flashing characteristic "5" (. — .). Aviation fuel, day and night. No other servicing facilities.

Department of Commerce intermediate field, site 25, Portland-Spokane Airway. One mile E. Altitude, 1,361 feet. Irregular shape, 60 acres, 2,025 by 1,761 feet, sod, level, natural drainage. Directional arrow marked "2a P-S." Pole line to S. and SW., beacon tower to SW. Beacon and boundary lights. Beacon, 24-inch rotating, with green course lights flashing characteristic "5" (._.)• Aviation fuel, day and night. No other servicing facilities. 

Sprague

Department of Commerce intermediate field, site 28, Portland-Spokane Airway. Five and one-half miles SW. Altitude, 1,942 feet T shape, 26 acres, sandy, level, natural drainage; two landing strips 2,400 by 300 feet N./S., 1,700 by 300 feet E./W. Directional arrow marked "28 P-S." Pole line to W., beacon tower to SE. Beacon, boundary, and approach lights. Beacon, 24-inch rotating, with green course lights flashing characteristic "8" (_...). Aviation fuel. No other servicing facilities. 

Department of Commerce intermediate field, site 28, Portland Spokane Airway. Five and one-half miles SW. of city. Altitude, 1,942 feet. T shape, 26 acres, sandy, level, natural drainage; two landing strips, KE./SW. 2,730 feet; E./W. 1,650 feet. Directional arrow marked "28 P-S." >ole line to W.; beacon tower in SE. angle of field. Beacon, boundary, and approach lights. Beacon, 24-inch rotating, with green course lights flashing characteristic "8" (— . . .). Aviation fuel. No servicing facilities.