21 DICKER 1958 Mexican Expedition - summer 1958 June 14 to July 27 PERSONEL: WZL NAOMI I. LIDICKER PETER R. MARLEN JUDITH G. MARLEN June 14 Left Berkeley ~ 1000, odometer reading = 14748 Took US 50 to beyond Tracy, Calif., 33+132 to Modesto + US 99 to Bakersfield. US 466 thru Teakchapi Pass to jct 395 -> S to ~ 2 mi S of Adelanto where we camped. June 15 Took US 66+91 to US [illegible] 99 -> El Centro. US 80 -> had lunch on Mexican side of R. Amv. Came E & jct with Calif. 98. -> continued S Yuma + Gila Bend; Ariz 84 to Tucson. Av. ~ 1830. June 16-18 - Meetings of the Amv. Soc. of Mammalogists in Tucson. June 19 Left Tucson ~ 0800 on US 80 -> Benson, About 5 mi. W of Benson we noticed that we lacked the correct map, was mostly yucca mesquite or growth. Beyond Benson we continued on Ariz. 86 to Willcox & N Benson to rd. gets up