Dear Keith this message is intoduction to two files with raw data which sent by e-mail simultaneously. Two main blocks of data - KTU (Kotuy river) and MAI (Maimecha river): (Data format - ITRDB Compact time series format (C)) KTU: Period - 38-1861 yy. A.D. Region - Krasn.kray, 70 30 NL,103 00 EL, upper timber- line, 250 m a.s.l. Material - wood remains preserved on ground surface Number of samples(trees) - 62 abs.dated Radiocarbon dates: KTU009 - 1285 +/-50 AD (SB-Novosib.) KTU030 - 1550 +/-35 AD (SB-Novosib.) KTU004 - 1720 +/-65 AD (SB-Novosib.) MAY: Period - 864-1288 yy.A.D. Region - Krasn.kray,71 00 NL,102 00 EL, river's terracce, r.Maimecha Material - subfossil wood from river's bank deposits Number of trees (logs) - 6 abs.dated Radiocarbon dates: MAY923E 1161 +/- 30 AD (B-6089,Bern) Notes: MAY-series were absolutely dated by using the KTU-serie. Please, inform me if something will be wrong with data transfer. Best wishes, Gene.