Two sites crucial to the restoration of Atlantic salmon in Maine rivers – the Craig Brook National Fish Hatchery in East Orland and the Green Lake National Fish Hatchery in Ellsworth – will be offering public tours throughout the summer. Craig Brook is open from 8 a.m. to 3:30 p.m. weekdays and 8 a.m. to 3 p.m. weekends. Group tours can be arranged by calling 469-6701, ext. 215. The hatchery is located on Hatchery Road, just off Route 1, in East Orland, six miles north of Bucksport. Green Lake is open from 8 a.m. to 4 p.m. seven days a week. Group tours can be arranged by calling 667-9531. The hatchery is located on Hatchery Way, off route 180, seven miles north of Ellsworth. Friends of Craig Brook have founded an Atlantic salmon museum in East Orland, which volunteers will staff from noon to 3 p.m. Tuesdays, Thursdays and weekends, beginning June 19 and ending Aug. 31. For more information, contact Friends President Bob Mushrall at 469-2400. (Misty Edgecomb, BDN)